Pressure reduction and frequency conversion control system of water feeding pump

Abstract

The utility model relates to the technical field of water pump frequency conversion regulation, in particular to a pressure reduction frequency conversion control system of a water feeding pump. The connecting assembly comprises a pump body, a first connecting pipe connected with the pump body, a second connecting pipe matched with the first connecting pipe, a baffle connected with the second connecting pipe, a pulling plate connected with the baffle and a rectangular plate connected with the pulling plate, and the pump body comprises a water inlet end and a water outlet end. The water inlet end is arranged on one side of the pump body, and the water outlet end is arranged at the other end of the pump body. The pump body and the pipeline can be quickly disassembled and assembled through the connecting assembly, when a sealing piece between the pipeline and the pump body is aged or damaged, a worker can conveniently replace the sealing piece, and better practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of water pump frequency conversion regulation, in particular to a water pump voltage reduction frequency conversion control system. Background Art

[0002] A water pump is a device that pumps liquid from a low place to a high place or transports liquid from one place to another. A water pump refers to a water pump that is specially used to provide water to buildings or industrial facilities. It is usually installed near a water source and pumps water into a building or equipment for water supply. A water pump usually needs to have a high flow rate and pressure to ensure that it can meet the water volume and water pressure requirements of the building or equipment. At present, if the seal at the connection between the water pump and the pipeline is aged or damaged during use, the sealing performance will be reduced, thereby causing leakage. However, most of the pipelines in the prior art are fastened by multiple sets of bolts, and the process of disassembling and replacing the seals is cumbersome and has poor practicality. Utility Model Content

[0003] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0004] In view of the above problems and / or the problems existing in the prior art, the present utility model is proposed.

[0005] Therefore, the technical problem to be solved by the utility model is that if the seal at the connection between the water pump and the pipeline is aged or damaged, the sealing performance will be reduced, thereby causing leakage. However, most pipelines in the prior art are fastened by multiple sets of bolts, and the process of disassembling and replacing the seals is rather cumbersome and of poor practicality.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a water pump step-down frequency conversion control system includes a connecting assembly, the connecting assembly includes a pump body, a first connecting pipe connected to the pump body, a second connecting pipe matching the first connecting pipe, a baffle connected to the second connecting pipe, a pulling plate connected to the baffle, and a rectangular plate connected to the pulling plate.

[0007] As a preferred solution of the water supply pump step-down frequency conversion control system of the utility model, the pump body includes a water inlet end and a water outlet end, the water inlet end is arranged on one side of the pump body, and the water outlet end is arranged on the other end of the pump body.

[0008] As a preferred solution of the water pump step-down frequency conversion control system of the utility model, wherein: the first connecting pipe includes a sealing ring installation guide groove, a fixing plate and an arc guide rail, one end of the first connecting pipe is fixedly connected to the water inlet end and the water outlet end respectively, the sealing ring installation guide groove is fixedly connected to the other end of the first connecting pipe, the fixing plate is fixedly connected to the circumferential surface of the first connecting pipe, and the arc guide rail is fixedly connected to one side of the fixing plate;

[0009] The arc-shaped guide rail comprises a first slot and a magnetic pad, wherein the first slot is arranged on a side of the arc-shaped guide rail protruding outward, and the magnetic pad is fixedly connected to one end of the arc-shaped guide rail in a rotation direction.

[0010] As a preferred solution of the water pump step-down frequency conversion control system of the utility model, the second connecting pipe includes a positioning ring, a sealing groove and a connecting block, the positioning ring is fixedly connected to one end of the second connecting pipe, the sealing groove is opened at the end of the positioning ring away from the second connecting pipe, and the connecting block is fixedly connected to the circumferential surface of the second connecting pipe.

[0011] As a preferred solution of the water pump step-down frequency conversion control system of the utility model, the connecting block includes a first slide groove and a second clamping groove, the first slide groove is opened at one end of the rotation direction of the connecting block, the arc guide rail slides in cooperation with the first slide groove, the second clamping groove is opened on the side of the connecting block protruding outward, and the first slide groove is communicated with the second clamping groove.

[0012] As a preferred solution of the water pump step-down frequency conversion control system described in the utility model, the baffle includes a second slide groove, a first spring and a matching groove, the baffle is fixedly connected to the side of the connecting block protruding outward, the second slide groove passes through and is opened at the upper end of the baffle, one end of the first spring is fixedly connected to the top of the baffle, the other end of the first spring is fixedly connected to the pulling plate, the matching groove is opened at the top of the baffle, and the matching groove matches the rectangular plate.

[0013] As a preferred solution of the water pump step-down frequency conversion control system of the utility model, the matching groove includes a first chamber and a second chamber, the first chamber is opened on the inner wall of the matching groove, and the second chamber is opened on the inner wall of the first chamber.

[0014] As a preferred solution of the water pump step-down frequency conversion control system of the utility model, the pulling plate includes a sliding rod and a second spring, the sliding rod is fixedly connected to the inwardly recessed side of the pulling plate, the sliding rod is slidably connected to the second sliding groove, the sliding rod is engaged with the first slot and the second slot, one end of the second spring is fixedly connected to one side of the pulling plate, and the other end of the second spring is fixedly connected to the rectangular plate.

[0015] As a preferred solution of the water pump step-down frequency conversion control system of the utility model, the rectangular plate includes a movable plate and a positioning pin, the movable plate is fixedly connected to one side of the rectangular plate, the movable plate cooperates with the first chamber, the positioning pin is fixedly connected to one side of the movable plate, and the positioning pin is engaged with the second chamber.

[0016] As a preferred solution of the water feed pump step-down frequency conversion control system of the utility model, it includes a frequency conversion unit, which is connected to the pump body, and includes a unit module and a display. The unit module includes a water feed regulating valve connected to the pump body, a cooling water regulating valve connected to the pump body, a cooling water flow detector connected to the pump body, a drum water level detector connected to the pump body, and a flow monitor connected to the pump body. The cooling water flow detector, the drum water level detector and the flow monitor are electrically connected to the display.

[0017] The beneficial effects of the utility model include: the pump body and the pipeline can be quickly disassembled and assembled through the connecting assembly, and when the sealing member between the pipeline and the pump body is aged or damaged, it is convenient for the staff to replace it, which has better practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0019] Figure 1 A schematic diagram of the overall structure of a water supply pump voltage reduction and frequency conversion control system according to an embodiment of the utility model;

[0020] Figure 2 A schematic diagram of the structure of the first connecting pipe of a water pump step-down frequency conversion control system according to an embodiment of the utility model;

[0021] Figure 3 This is an enlarged schematic diagram of the structure of a water supply pump step-down frequency conversion control system G according to an embodiment of the utility model;

[0022] Figure 4 This is an enlarged schematic diagram of the structure H of a water supply pump voltage reduction and frequency conversion control system according to an embodiment of the utility model;

[0023] Figure 5 This is an enlarged schematic diagram of the structure of a water supply pump step-down frequency conversion control system H-1 according to an embodiment of the utility model;

[0024] Figure 6 A schematic diagram of a partial cross-sectional structure of a baffle in a water supply pump step-down frequency conversion control system according to an embodiment of the utility model;

[0025] Figure 7 A schematic diagram of a water pump voltage reduction and frequency conversion control system according to an embodiment of the utility model. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0030] Example 1

[0031] Reference Figure 1-Figure 6The present embodiment provides a water pump step-down frequency conversion control system including a connecting assembly 100, wherein the connecting assembly 100 includes a pump body 101, a first connecting pipe 102 connected to the pump body 101, a second connecting pipe 103 cooperating with the first connecting pipe 102, a baffle 104 connected to the second connecting pipe 103, a pulling plate 105 connected to the baffle 104, and a rectangular plate 106 connected to the pulling plate 105.

[0032] Furthermore, the pump body 101 includes a water inlet end 101 a and a water outlet end 101 b , the water inlet end 101 a is arranged at one side of the pump body 101 , and the water outlet end 101 b is arranged at the other end of the pump body 101 .

[0033] Furthermore, the first connecting tube 102 includes a sealing ring mounting guide groove 102a, a fixed plate 102b and an arc guide rail 102c, one end of the first connecting tube is fixedly connected to the water inlet end 101a and the water outlet end 101b respectively, the sealing ring mounting guide groove 102a is fixedly connected to the other end of the first connecting tube 102, the fixed plate 102b is fixedly connected to the circumferential surface of the first connecting tube 102, and the arc guide rail 102c is fixedly connected to one side of the fixed plate 102b.

[0034] It should be noted that a sealing ring is engaged in the sealing ring installation guide groove 102a.

[0035] Furthermore, the arc-shaped guide rail 102c includes a first slot 102c-1 and a magnetic pad 102c-2. The first slot 102c-1 is opened on a side of the arc-shaped guide rail 102c protruding outward, and the magnetic pad 102c-2 is fixedly connected to one end of the arc-shaped guide rail 102c in the rotation direction.

[0036] Furthermore, the second connecting tube 103 includes a positioning ring 103a, a sealing groove 103b and a connecting block 103c. The positioning ring 103a is fixedly connected to one end of the second connecting tube 103. The sealing groove 103b is opened at the end of the positioning ring 103a away from the second connecting tube 103. The connecting block 103c is fixedly connected to the circumferential surface of the second connecting tube 103.

[0037] When in use, first move the sealing groove 103b opened at one end of the second connecting tube 103 closer to the first connecting tube 102, so that the sealing ring in the sealing ring installation guide groove 102a abuts against the inner wall of the sealing groove 103b, thereby sealing the first connecting tube 102 and the second connecting tube 103.

[0038] Example 2

[0039] Reference Figure 1-Figure 6, which is the second embodiment of the utility model, is based on the previous embodiment, and provides a water pump step-down frequency conversion control system, including a connecting component 100, the connecting component 100 includes a pump body 101, a first connecting pipe 102 connected to the pump body 101, a second connecting pipe 103 cooperating with the first connecting pipe 102, a baffle 104 connected to the second connecting pipe 103, a pulling plate 105 connected to the baffle 104, and a rectangular plate 106 connected to the pulling plate 105.

[0040] Furthermore, the connecting block 103c includes a first slide groove 103c-1 and a second card groove 103c-2. The first slide groove 103c-1 is opened at one end of the connecting block 103c in the rotation direction. The arc guide rail 102c slides with the first slide groove 103c-1. The second card groove 103c-2 is opened on the side of the connecting block 103c protruding outward. The first slide groove 103c-1 is connected to the second card groove 103c-2.

[0041] It should be noted that the magnetic pad 102c - 2 can be magnetically connected to the inner wall of the first slide groove 103c - 1 to improve the stability between the first connecting tube 102 and the second connecting tube 103 .

[0042] It should be noted that Figure 1 - Figure 6 The structure in the figure is only used as a reference for mechanical transmission and is not a structural proportional diagram of the final product.

[0043] Furthermore, the baffle 104 includes a second slide groove 104a, a first spring 104b and a matching groove 104c. The baffle 104 is fixedly connected to the side of the connecting block 103c protruding outward. The second slide groove 104a passes through and is opened at the upper end of the baffle 104. One end of the first spring 104b is fixedly connected to the top of the baffle 104. The other end of the first spring 104b is fixedly connected to the pulling plate 105. The matching groove 104c is opened at the top of the baffle 104, and the matching groove 104c matches with the rectangular plate 106.

[0044] Furthermore, the matching groove 104c includes a first chamber 104c-1 and a second chamber 104c-2. The first chamber 104c-1 is opened on the inner wall of the matching groove 104c, and the second chamber 104c-2 is opened on the inner wall of the first chamber 104c-1.

[0045] Furthermore, the pulling plate 105 includes a sliding rod 105a and a second spring 105b. The sliding rod 105a is fixedly connected to the inwardly recessed side of the pulling plate 105. The sliding rod 105a is slidably connected to the second sliding groove 104a. The sliding rod 105a is engaged with the first card groove 102c-1 and the second card groove 103c-2. One end of the second spring 105b is fixedly connected to one side of the pulling plate 105, and the other end of the second spring 105b is fixedly connected to the rectangular plate 106.

[0046] It should be noted that the second spring 105b can be bent so that the rectangular plate 106b moves in the vertical direction.

[0047] Furthermore, the rectangular plate 106 includes a movable plate 106a and a positioning pin 106b, the movable plate 106a is fixedly connected to one side of the rectangular plate 106, the movable plate 106a cooperates with the first chamber 104c-1, the positioning pin 106b is fixedly connected to one side of the movable plate 106a, and the positioning pin 106b is engaged with the second chamber 104c-2.

[0048] When in use, the rectangular plate 106 is pulled toward the side away from the pulling plate 105, so that the second spring 105b is stretched, and the pulling plate 105 is pulled upward at the same time, so that the sliding rod 105a is separated from the first clamping groove 102c-1 and the second clamping groove 103c-2, and the sealing groove 103b opened at one end of the second connecting tube 103 is moved closer to the first connecting tube 102, so that the sealing ring in the sealing ring installation guide groove 102a abuts against the inner wall of the sealing groove 103b, which can seal the first connecting tube 102 and the second connecting tube 103, and the second connecting tube 103 is rotated so that the arc guide rail 102c is engaged with the first slide groove 103c-1, and the rectangular plate 105 is pressed downward. 6, so that the second spring 105b is bent, the pulling plate 105 is released, the sliding rod 105a is engaged with the first slot 102c-1 and the second slot 103c-2, the moving plate 106a enters the matching slot 104c, and the restoring elastic force of the second spring 105b in the horizontal direction can drive the moving plate 106a to enter the first chamber 104c-1, and the restoring elastic force of the second spring 105b in the bending direction can drive the positioning pin 106b to engage with the second chamber 104c-2, so that the pump body 101 and the pipeline can be quickly disassembled and assembled. When the sealing member between the pipeline and the pump body 101 is aged or damaged, it is convenient for the staff to replace it, which has better practicality.

[0049] Example 3

[0050] Reference Figure 7, which is the third embodiment of the utility model. Based on the previous two embodiments, this embodiment provides a water pump step-down frequency conversion control system, including a frequency conversion unit 200, which is connected to a pump body 101, and includes a unit module 201 and a display 202. The unit module 201 includes a feed water regulating valve 201a connected to the pump body 101, a cooling water regulating valve 201b connected to the pump body 101, a cooling water flow detector 201c connected to the pump body 101, a drum water level detector 201d connected to the pump body 101, and a TCA flow monitor 201f connected to the pump body 101. The cooling water flow detector 201c, the drum water level detector 201d and the TCA flow monitor 201f are electrically connected to the display 202. The cooling water flow detector 201c can detect the cooling water flow, the drum water level detector 201d can detect the drum water level, and the TCA flow monitor can monitor the TCA flow in real time.

[0051] When in use, first manually reduce the feed pump frequency conversion pressure setting value through the original logic during the start-up and shutdown process of the unit or under stable load. It can be reduced to 14MPa first according to the actual situation on site, and collect the opening of the feed water regulating valve 201a, the opening of the cooling water regulating valve 201b, the cooling water flow, the drum water level, and the TCA flow data after the pressure reduction to verify the impact of the pressure setting reduction on the TCA flow, cooling water flow, the drum water level regulation, energy saving, and safety. The second step is to carry out logic configuration, perform static tests on the modified feed water control logic, confirm the parameters, and the screen is correct. The third step is dynamic testing, put the optimized logic into operation, optimize the parameters, and observe the safety, reliability, stability and energy-saving effects of the optimized logic.

[0052] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and ratio of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0053] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0054] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A water supply pump step-down frequency conversion control system, characterized in that: include, A connecting assembly (100), the connecting assembly (100) comprising a pump body (101), a first connecting pipe (102) connected to the pump body (101), a second connecting pipe (103) matched with the first connecting pipe (102), a baffle (104) connected to the second connecting pipe (103), a pulling plate (105) connected to the baffle (104), and a rectangular plate (106) connected to the pulling plate (105); The pump body (101) comprises a water inlet end (101a) and a water outlet end (101b), wherein the water inlet end (101a) is arranged at one side of the pump body (101), and the water outlet end (101b) is arranged at the other end of the pump body (101); The first connecting pipe (102) comprises a sealing ring installation guide groove (102a), a fixing plate (102b) and an arc-shaped guide rail (102c); one end of the first connecting pipe is fixedly connected to the water inlet end (101a) and the water outlet end (101b) respectively; the sealing ring installation guide groove (102a) is fixedly connected to the other end of the first connecting pipe (102); the fixing plate (102b) is fixedly connected to the circumferential surface of the first connecting pipe (102); and the arc-shaped guide rail (102c) is fixedly connected to one side of the fixing plate (102b); The second connecting tube (103) comprises a positioning ring (103a), a sealing groove (103b) and a connecting block (103c); the positioning ring (103a) is fixedly connected to one end of the second connecting tube (103); the sealing groove (103b) is provided at an end of the positioning ring (103a) away from the second connecting tube (103); and the connecting block (103c) is fixedly connected to a circumferential surface of the second connecting tube (103).

2. The water supply pump voltage reduction and frequency conversion control system according to claim 1 is characterized in that: The arc-shaped guide rail (102c) comprises a first card slot (102c-1) and a magnetic pad (102c-2); the first card slot (102c-1) is provided on a side of the arc-shaped guide rail (102c) protruding outwards; and the magnetic pad (102c-2) is fixedly connected to one end of the arc-shaped guide rail (102c) in a rotation direction.

3. The water supply pump voltage reduction and frequency conversion control system according to claim 2 is characterized in that: The connecting block (103c) comprises a first sliding groove (103c-1) and a second clamping groove (103c-2); the first sliding groove (103c-1) is arranged at one end of the connecting block (103c) in a rotation direction; the arc-shaped guide rail (102c) is slidably matched with the first sliding groove (103c-1); the second clamping groove (103c-2) is arranged at a side of the connecting block (103c) protruding outward; and the first sliding groove (103c-1) is communicated with the second clamping groove (103c-2).

4. The water supply pump voltage reduction and frequency conversion control system according to claim 3 is characterized in that: The baffle plate (104) comprises a second slide groove (104a), a first spring (104b) and a matching groove (104c); the baffle plate (104) is fixedly connected to the outwardly protruding side of the connecting block (103c); the second slide groove (104a) is penetrated and opened at the upper end of the baffle plate (104); one end of the first spring (104b) is fixedly connected to the top of the baffle plate (104); the other end of the first spring (104b) is fixedly connected to the pulling plate (105); the matching groove (104c) is opened at the top of the baffle plate (104); and the matching groove (104c) matches with the rectangular plate (106).

5. The water supply pump voltage reduction and frequency conversion control system according to claim 4 is characterized in that: The matching groove (104c) comprises a first chamber (104c-1) and a second chamber (104c-2), wherein the first chamber (104c-1) is opened on the inner wall of the matching groove (104c), and the second chamber (104c-2) is opened on the inner wall of the first chamber (104c-1).

6. The water supply pump voltage reduction and frequency conversion control system according to claim 5 is characterized in that: The pulling plate (105) comprises a sliding rod (105a) and a second spring (105b); the sliding rod (105a) is fixedly connected to the inwardly recessed side of the pulling plate (105); the sliding rod (105a) is slidably connected to the second sliding groove (104a); the sliding rod (105a) is engaged with the first clamping groove (102c-1) and the second clamping groove (103c-2); one end of the second spring (105b) is fixedly connected to one side of the pulling plate (105); and the other end of the second spring (105b) is fixedly connected to the rectangular plate (106).

7. The water supply pump voltage reduction and frequency conversion control system according to claim 6 is characterized in that: The rectangular plate (106) comprises a movable plate (106a) and a positioning pin (106b); the movable plate (106a) is fixedly connected to one side of the rectangular plate (106); the movable plate (106a) cooperates with the first chamber (104c-1); the positioning pin (106b) is fixedly connected to one side of the movable plate (106a); and the positioning pin (106b) engages with the second chamber (104c-2).

8. The water supply pump voltage reduction and frequency conversion control system according to claim 7 is characterized in that: include, A frequency conversion unit (200), the frequency conversion unit (200) being connected to the pump body (101), comprising a unit module (201) and a display (202); the unit module (201) comprising a feed water regulating valve (201a) connected to the pump body (101), a cooling water regulating valve (201b) connected to the pump body (101), a cooling water flow detector (201c) connected to the pump body (101), a drum water level detector (201d) connected to the pump body (101), and a TCA flow monitor (201f) connected to the pump body (101); the cooling water flow detector (201c), the drum water level detector (201d), and the TCA flow monitor (201f) being electrically connected to the display (202).

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