Sewage discharge type pipeline descaling device

Abstract

The utility model provides a blowdown type pipeline descaling device which comprises a main pipeline, a descaling mechanism, a first valve body, a second valve body, a branch pipeline, a third valve body, a blowdown pipeline and a fourth valve body. The descaling mechanism is arranged on the main pipeline and is used for descaling the inner wall of the pipeline; the first valve body and the second valve body are both arranged on the main pipeline and arranged on the two sides of the descaling mechanism correspondingly. The two ends of the branch pipeline communicate with the main pipeline, and the two ends of the branch pipeline are located on the sides, away from the descaling mechanism, of the first valve body and the second valve body correspondingly; the third valve body is arranged on the branch pipeline; the blow-off pipeline is communicated with the main pipeline and is positioned between the second valve body and the descaling mechanism; by backwashing the descaling device, on-line discharge of dirt under the condition that production is not stopped is realized, normal use of the descaling device is effectively guaranteed, production operation is not affected, on-line dirt removal can be realized, and cleaning effect and production efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline descaling, in particular to a sewage-discharging pipeline descaling device. Background Art

[0002] Scale is a solid precipitate formed when the solubility of dissolved minerals in water changes during heating or evaporation. It usually adheres to the inner walls of equipment such as water pipes, boilers, water heaters and heat exchangers, and has a negative impact on the normal operation and efficiency of the equipment.

[0003] A variable diameter sewage pipe descaling device with publication number CN205076899U is used to be installed on an inlet pipeline, including a vertically arranged metal cylinder, the diameter of the metal cylinder is larger than the diameter of the inlet pipeline, the upper end of the metal cylinder is open, and the lower end is provided with a sewage outlet, and the sewage outlet is provided with a sewage switch that can open or close the sewage outlet, and the two sides of the metal cylinder are respectively provided with an input pipe and an output pipe connected to the inner cavity of the metal cylinder, and flanges are provided at the outer ends of the input pipe and the output pipe. The inner cavity of the metal cylinder is divided into a left cavity and a right cavity connected at the bottom, and a plurality of alloy chips connected in series by a screw are provided in the right cavity, and the plurality of alloy chips are arranged at intervals along the height direction of the right cavity, and each alloy chip is provided with a plurality of alloy chip through holes for fluid to pass through, and the upper end opening of the metal cylinder is sealed by a flange gasket and a flange cover.

[0004] In the existing sewage pipe descaling device, impurities in the fluid in the discharge device are discharged by unscrewing the sewage switch of the sewage outlet, but the cleaning effect is poor, and some impurities will be left in the dead corners that cannot be reached and are not removed, which will affect the normal use of the descaling device for a long time, thereby reducing the use effect. Utility Model Content

[0005] In view of this, the utility model proposes a sewage-discharging pipeline descaling device, which realizes online discharge of dirt without stopping production by backwashing the descaling device, thereby improving the cleaning effect and production efficiency.

[0006] The technical solution of the utility model is implemented as follows: The utility model provides a sewage pipe descaling device, comprising:

[0007] Main road pipeline;

[0008] The descaling mechanism is arranged on the main pipeline and is used to descaling the inner wall of the pipeline and the heat exchange equipment;

[0009] The first valve body and the second valve body are both arranged on the main pipeline and are respectively arranged on both sides of the descaling mechanism;

[0010] Both ends of the branch pipeline are connected to the main pipeline, and the two ends of the branch pipeline are respectively located on the side of the first valve body and the second valve body away from the descaling mechanism;

[0011] A third valve body is arranged on the branch pipeline;

[0012] A sewage pipe is connected to the main pipeline and is located between the second valve body and the descaling mechanism;

[0013] The fourth valve body is arranged on the sewage discharge pipe.

[0014] On the basis of the above technical solution, preferably, it also includes a three-way connecting pipe, the number of which is three, two of which are arranged between the ends on both sides of the branch pipe and the main pipe, for connecting the branch pipe with the main pipe; the other three-way connecting pipe is arranged between the sewage pipe and the main pipe, for connecting the sewage pipe with the main pipe.

[0015] On the basis of the above technical solution, preferably, the descaling mechanism comprises a housing and an alloy chip assembly, wherein:

[0016] The shell is hollow inside and has first flanges on both sides. The shell is connected to the main pipeline through the first flanges. The shell is located between the first valve body and the second valve body, and the fluid flows in the shell.

[0017] The alloy chip assembly is detachably connected in the shell and arranged along the axial direction of the shell for pipeline descaling.

[0018] On the basis of the above technical solution, preferably, the housing includes two shells, wherein the two shells are arranged opposite to each other, second flange parts are arranged on opposite sides of the two shells, and the two shells are fixedly connected by the second flange parts.

[0019] On the basis of the above technical solution, preferably, the shell includes a gradient section and a horizontal section, the gradient section is fixed on the side of the horizontal section away from the second flange portion, and is fixedly connected to the first flange portion, the side of the gradient section away from the horizontal section is inclined toward the axis of the first flange portion, and the second flange portion is fixed on the side of the horizontal section away from the gradient section.

[0020] On the basis of the above technical solution, preferably, the housing further comprises a sealing member, and the sealing member abuts between the two second flange portions to seal the connection between the two housings.

[0021] On the basis of the above technical solution, preferably, the alloy chip assembly includes a plurality of alloy chips, fixing parts and a plurality of fasteners, wherein:

[0022] The plurality of alloy chips are sleeved on the outside of the fixing member, and the plurality of alloy chips are located in the shell and elastically abut against the inner wall of the shell;

[0023] Each alloy chip is provided with a plurality of through holes for fluid to pass through, and the plurality of through holes are evenly distributed in an annular array on the alloy chip;

[0024] Several fasteners are threadedly connected to the fixing member and are arranged on both sides of each alloy chip and abut against the corresponding alloy chip surface to fix the alloy chip and the fixing member relatively. The axis of the fastener is on the same straight line as the axis of the shell.

[0025] On the basis of the above technical solution, preferably, an elastic sheet is arranged on the outer side of the alloy core sheet, the elastic sheet is arranged in a ring shape, and the outer periphery of the elastic sheet abuts against the peripheral wall of the shell.

[0026] On the basis of the above technical solution, preferably, the plurality of alloy chips are arranged at equal intervals along the axial direction of the shell.

[0027] On the basis of the above technical solution, preferably, the plurality of alloy chips are symmetrically arranged in two shells at the connection point of the two second flange parts.

[0028] The sewage pipe descaling device of the utility model has the following beneficial effects compared with the prior art:

[0029] (1) By controlling the first valve body to be in a closed state, and the second valve body, the third valve body and the fourth valve body to be in an open state, the fluid flows through the main pipeline, the branch pipeline and the descaling mechanism in sequence, and discharges the dirt to the sewage pipeline, so that the descaling device can be cleaned, the dirt can be discharged, and the dirt in the dead corners that cannot be reached by some impurities can be removed, which effectively ensures the normal use of the descaling device, does not affect the production operation, and can remove the dirt online, thereby improving the cleaning effect and production efficiency;

[0030] (2) The gradual change section provided in the shell can reduce the turbulence and resistance of the fluid when it flows into or out of the shell, thereby improving the flow efficiency of the fluid;

[0031] (3) The elastic properties of the elastic sheet enable it to always maintain close contact with the inner wall of the pipe; the descaling effect is improved, while being adaptable to the use of different pipes and facilitating the maintenance of the alloy chip assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1It is a structural schematic diagram of the sewage pipe descaling device of the utility model;

[0034] Figure 2 It is a structural cross-sectional view of the descaling mechanism of the sewage pipe descaling device of the utility model;

[0035] Figure 3 It is a cross-sectional view of the shell connection structure of the sewage pipe descaling device of the utility model;

[0036] Figure 4 It is a three-dimensional diagram of the alloy chip assembly of the sewage pipe descaling device of the utility model. DETAILED DESCRIPTION

[0037] The following will be combined with the implementation of the utility model to clearly and completely describe the technical solutions in the implementation of the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] like Figure 1-4 As shown, a sewage pipe descaling device of the utility model comprises a main pipeline 1, a descaling mechanism 2, a first valve body 3, a second valve body 4, a branch pipeline 5, a third valve body 6, a sewage pipe 7 and a fourth valve body 8.

[0039] Among them, fluid flows in the main pipeline 1; the descaling mechanism 2 is arranged on the main pipeline 1, and is used to descal the inner wall of the pipeline and the heat exchange equipment; the first valve body 3 and the second valve body 4 are both arranged on the main pipeline 1, and are respectively arranged on both sides of the descaling mechanism 2; both ends of the branch pipeline 5 are connected with the main pipeline 1, and the two ends of the branch pipeline 5 are respectively located on the side of the first valve body 3 and the second valve body 4 away from the descaling mechanism 2; the third valve body 6 is arranged on the branch pipeline 5; the sewage pipeline 7 is connected with the main pipeline 1, and is located between the second valve body 4 and the descaling mechanism 2; the fourth valve body 8 is arranged on the sewage pipeline 7.

[0040] When the descaling device in this embodiment is descaling, the second valve body 4 and the fourth valve body 8 are in a closed state, the first valve body 3 and the third valve body 6 are in an open state, and the fluid passes through the main pipeline 1 and the descaling mechanism 2 for descaling; when the descaling device is discharging sewage, the first valve body 3 is in a closed state, the second valve body 4, the third valve body 6 and the fourth valve body 8 are in an open state, and the fluid passes through the main pipeline 1 and flows through the branch pipeline 5 and the descaling mechanism 2 in sequence to the sewage pipeline 7 to discharge the sewage.

[0041] According to this embodiment, the descaling device is cleaned by backwashing to achieve the discharge of dirt. The dirt in some dead corners that cannot be reached by impurities can be removed, effectively ensuring the normal use of the descaling device. It does not affect the production operation and can remove the dirt online, thereby improving the cleaning effect and production efficiency.

[0042] This embodiment also includes a three-way connecting pipe 9, and the number of the three-way connecting pipes 9 is three, two of which are arranged between the ends on both sides of the branch pipe 5 and the main pipe 1, for connecting the branch pipe 5 with the main pipe 1; the other three-way connecting pipe 9 is arranged between the sewage pipe 7 and the main pipe 1, for connecting the sewage pipe 7 with the main pipe 1.

[0043] The descaling mechanism 2 in this embodiment includes a shell 21 and an alloy chip assembly 22, wherein the interior of the shell 21 is hollow and has first flange portions 200 on both sides. The shell 21 is connected to the main pipeline 1 through the first flange portion 200, and the shell 21 is located between the first valve body 3 and the second valve body 4, and the fluid flows in the shell 21; the alloy chip assembly 22 is detachably connected to the shell 21 and is arranged along the axial direction of the shell 21 for pipeline descaling.

[0044] The housing 21 in this embodiment includes two shells 211 , wherein the two shells 211 are arranged opposite to each other, and second flange portions 210 are arranged on opposite sides of the two shells 211 . The two shells 211 are fixedly connected via the second flange portions 210 .

[0045] It should be noted that the outer shell 21 is divided into two relatively arranged shells 211 to facilitate the disassembly and assembly of the outer shell 21. When the alloy chip assembly 22 needs to be maintained, the two shells 211 can be disassembled and separated, and the alloy chip assembly 22 can be removed from the outer shell 21 for easy maintenance.

[0046] The shell 211 in this embodiment includes a gradient section 2111 and a horizontal section 2112. The gradient section 2111 is fixed on the side of the horizontal section 2112 away from the second flange portion 210 and is fixedly connected to the first flange portion 200. The side of the gradient section 2111 away from the horizontal section 2112 is inclined toward the axis of the first flange portion 200, and the second flange portion 210 is fixed on the side of the horizontal section 2112 away from the gradient section 2111.

[0047] It should be noted that the gradient section 2111 allows the shell 211 to better adapt to the shape and size of the pipeline when connected to the main pipeline 1. Since the gradient section 2111 is inclined toward the axis of the first flange portion 200 on the side away from the horizontal section 2112, the turbulence and resistance of the fluid when flowing into or out of the outer shell 21 can be reduced, thereby improving the circulation efficiency of the fluid and increasing the outer diameter of the outer shell 21 and the diameter of the alloy chip assembly 22, thereby ensuring the process flow.

[0048] The housing 21 in this embodiment further includes a sealing member 213 , which is abutted between the two second flange portions 210 to seal the connection between the two housings 211 .

[0049] It should be noted that when the two shells 211 are connected via the second flange portion 210 , the seal 213 is compressed, thereby forming a tight sealing interface between the two shells 211 , and the sealing interface can effectively prevent fluid leakage from the connection.

[0050] The alloy chip assembly 22 in this embodiment includes a plurality of alloy chips 221, a fixing part 222 and a plurality of fasteners 223, wherein the plurality of alloy chips 221 are all sleeved on the outside of the fixing part 222, and the plurality of alloy chips 221 are all located in the outer shell 21 and elastically abut against the inner wall of the outer shell 21; each alloy chip 221 is provided with a plurality of through holes 220 for fluid to pass through, and the plurality of through holes 220 are uniformly distributed on the alloy chip 221 in a circular array; the plurality of fasteners 223 are all threadedly connected to the fixing part 222, and are arranged on both sides of each alloy chip 221, and abut against the corresponding surface of the alloy chip 221, and are used to relatively fix the alloy chip 221 and the fixing part 222, and the axis of the fastener 223 is on the same straight line as the axis of the outer shell 21.

[0051] It should be noted that the alloy chip 221 is sleeved on the outside of the fixing part 222 and elastically abuts against the inner wall of the outer shell 21, allowing the alloy chip 221 to produce a certain deformation when the fluid passes through, thereby making a closer contact with the inner wall of the outer shell 21 and improving the descaling effect; the through holes 220 are evenly distributed in a circular array, and the diameter of the through holes 220 is 5-25mm, which can ensure that the fluid can pass through the alloy chip 221 evenly, reduce fluid resistance, and maintain the descaling effect.

[0052] Specifically, the fixing member 222 in this embodiment can be made of stainless steel, and the alloy chip 221 is a special one composed of more than twenty kinds of metals, and the main components are Cu, Zn, Pb, Sn, Mn, etc.

[0053] Among them, when the fluid flows through the alloy chip assembly 22 through the through hole 220 of the alloy chip 221, this special alloy material contacts the medium, thereby generating a large number of tiny galvanic cells. Under the action of these tiny galvanic cells, the solubility of calcium carbonate can be increased, and the formation and growth of calcium carbonate crystal nuclei can be inhibited; and under the adsorption action of the tiny galvanic cells, the carbonate crystals are distorted, and the existence of such crystals in the form of calcite is inhibited; after the fluid passes through this device, the carbonate precipitated in the fluid has a crystal structure that changes into a loose, non-sticky metastable crystal form.

[0054] Moreover, the device can not only prevent the formation of new scale, but also, because the fluid will collide, rub and scour when passing through the device, the solid phase particles in the solution will be suspended and dispersed within a certain time and distance, so that the old scale attached to the pipe wall in the form of crystals will gradually melt and fall off. The core material of the descaling device can form a special electrochemical catalyst. When the fluid and the substances in the fluid are in contact with the device, the device changes the properties of the fluid and the substances in the fluid by electrochemical means. The solid phase particles in the fluid are always in a suspended and dissolved state under the action of the device, and no longer precipitate or adsorb on the metal surface of the pipe wall or other facilities. At the same time, the physical properties of the fluid are enhanced. In addition to removing the gas contained in the water and improving the water quality, the probability of the reaction between the gas and the metal is reduced, thereby not only achieving the effect of descaling, but also inhibiting the formation of algae in the pipeline; it can also prevent wax deposition by hindering the adsorption and focusing between solid particles.

[0055] In this embodiment, an elastic sheet 224 is disposed on the outer side of the alloy core 221 . The elastic sheet 224 is arranged in a ring shape, and the outer periphery of the elastic sheet 224 abuts against the peripheral wall of the housing 21 .

[0056] It should be noted that the annular elastic sheet 224 is tightly against the peripheral wall of the outer shell 21, forming an additional sealing barrier to prevent fluid from leaking from the gap between the alloy chip 221 and the outer shell 21, thereby enhancing the sealing of the entire descaling mechanism. The deformation of the elastic sheet 224 can ensure that the alloy chip 221 always maintains close contact with the inner wall of the pipe; and has good stability to prevent the alloy chip 221 from being displaced or loosened under the impact of fluid. At the same time, it can adapt to the use of different pipes and is easy to maintain. During maintenance, it only needs to make the elastic sheet 224 receive the extrusion force, and the alloy chip assembly 22 can be taken out from the inside of the outer shell 21.

[0057] In this embodiment, the alloy chips 221 are arranged at equal intervals along the axial direction of the housing 21 , and the alloy chips 221 are symmetrically disposed in the two housings 211 at the connection points of the two second flange portions 210 .

[0058] It should be noted that the alloy chips 221 are arranged at equal intervals along the axial direction, ensuring that when the fluid flows through the descaling mechanism, the contact area and contact time with the alloy chips 221 are uniform, which is conducive to achieving a uniform descaling effect, preventing excessive wear or incomplete descaling in local areas of the pipeline, and ensuring the stability and balance of the descaling mechanism during operation, thereby improving the descaling effect and stability of the descaling mechanism.

[0059] Working principle:

[0060] When the descaling device is discharging sewage, the first valve body 3 is controlled to be in a closed state, and the second valve body 4, the third valve body 6 and the fourth valve body 8 are in an open state. The fluid flows through the main pipeline 1, the branch pipeline 5 and the descaling mechanism 2 in sequence, and finally discharges the dirt to the sewage pipeline 7, thereby achieving the purpose of backwashing the descaling mechanism 2.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sewage pipe descaling device, characterized in that: include: Main pipeline (1); A descaling mechanism (2) is arranged on the main pipeline (1) and is used to descaling the inner wall of the pipeline and the heat exchange equipment; The first valve body (3) and the second valve body (4) are both arranged on the main pipeline (1) and are respectively arranged on both sides of the descaling mechanism (2); Both ends of the branch pipeline (5) are connected to the main pipeline (1), and the two ends of the branch pipeline (5) are respectively located on a side of the first valve body (3) and the second valve body (4) away from the descaling mechanism (2); A third valve body (6) is arranged on the branch pipeline (5); A sewage discharge pipe (7) is connected to the main pipeline (1) and is located between the second valve body (4) and the descaling mechanism (2); The fourth valve body (8) is arranged on the sewage discharge pipe (7).

2. The sewage pipe descaling device according to claim 1, characterized in that: It also comprises three three-way connecting pipes (9), wherein two of the three-way connecting pipes (9) are arranged between the ends of the branch pipe (5) on both sides and the main pipe (1), and are used to connect the branch pipe (5) with the main pipe (1); and the other three-way connecting pipe (9) is arranged between the sewage pipe (7) and the main pipe (1), and is used to connect the sewage pipe (7) with the main pipe (1).

3. The sewage pipe descaling device according to claim 1, characterized in that: The descaling mechanism (2) comprises a housing (21) and an alloy chip assembly (22), wherein: The shell (21) is hollow inside and has first flanges (200) on both sides. The shell (21) is connected to the main pipeline (1) via the first flanges (200). The shell (21) is located between the first valve body (3) and the second valve body (4), and the fluid flows in the shell (21). The alloy core component (22) is detachably connected to the housing (21) and is arranged along the axial direction of the housing (21) for use in pipeline descaling.

4. The sewage pipe descaling device according to claim 3, characterized in that: The housing (21) comprises two shells (211), wherein the two shells (211) are arranged opposite to each other, second flanges (210) are arranged on opposite sides of the two shells (211), and the two shells (211) are fixedly connected via the second flanges (210).

5. The sewage pipe descaling device according to claim 4, characterized in that: The shell (211) comprises a gradient section (2111) and a horizontal section (2112); the gradient section (2111) is fixed to a side of the horizontal section (2112) away from the second flange portion (210), and is fixedly connected to the first flange portion (200); the side of the gradient section (2111) away from the horizontal section (2112) is inclined toward the axis of the first flange portion (200); and the second flange portion (210) is fixed to a side of the horizontal section (2112) away from the gradient section (2111).

6. The sewage pipe descaling device according to claim 4, characterized in that: The housing (21) further comprises a sealing member (213), wherein the sealing member (213) is abutted between the two second flange portions (210) and is used to seal the connection between the two housings (211).

7. The sewage pipe descaling device according to claim 4, characterized in that: The alloy chip assembly (22) comprises a plurality of alloy chips (221), a fixing member (222) and a plurality of fasteners (223), wherein: A plurality of alloy chips (221) are sleeved on the outside of the fixing member (222), and the plurality of alloy chips (221) are located in the outer shell (21) and elastically abut against the inner wall of the outer shell (21); Each alloy chip (221) is provided with a plurality of through holes (220) for fluid to pass through, and the plurality of through holes (220) are evenly distributed on the alloy chip (221) in a circular array; A plurality of fasteners (223) are all threadedly connected to the fixing member (222) and are arranged on both sides of each alloy chip (221) and abut against the surface of the corresponding alloy chip (221) to relatively fix the alloy chip (221) and the fixing member (222). The axis of the fastener (223) is on the same straight line as the axis of the housing (21).

8. The sewage pipe descaling device according to claim 7, characterized in that: An elastic sheet (224) is arranged on the outer side of the alloy core sheet (221); the elastic sheet (224) is arranged in a ring shape, and the outer periphery of the elastic sheet (224) is in contact with the peripheral wall of the outer shell (21).

9. The sewage pipe descaling device according to claim 7, characterized in that: The plurality of alloy core pieces (221) are arranged at equal intervals along the axial direction of the housing (21).

10. The sewage pipe descaling device according to claim 9, characterized in that: The plurality of alloy core pieces (221) are symmetrically arranged in the two housings (211) at the connection points of the two second flange parts (210).

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