Converter station resin replacement system based on negative pressure jet principle

Abstract

The utility model discloses a converter station resin replacement system based on the negative pressure jet principle, which comprises a booster pump, a reversing valve, a resin particle bin, an ion exchanger, a water suction pump and a particle recovery bin, an inlet of the booster pump is communicated with a water source through a first valve, and an outlet of the booster pump is communicated with an inlet of the reversing valve through a pipeline provided with a pressure gauge. An outlet of the reversing valve is communicated with an upper inlet of the ion converter through a first pipeline, the first pipeline is communicated with the resin particle bin through a pipeline provided with a second valve, a lower outlet of the ion converter is communicated with an inlet of the water suction pump through a second pipeline, and an outlet of the water suction pump is communicated with the particle recovery bin through a pipeline; most old resin particles are driven to be discharged out of the ion exchanger through high-speed jet flow, air in the new resin storage bin is taken away through the high-speed jet flow, negative pressure is formed to enable the new resin particles to be entrained and sucked into the pipeline, a mixture of the resin particles and water is conveyed into the ion exchanger, and filling of the new resin particles in the ion exchanger is achieved.

Description

Technical Field

[0001] The utility model relates to the field of detection technology, in particular to a resin replacement system for a converter station based on the negative pressure jet principle. Background Art

[0002] The resin in the water system of the converter station needs to be replaced regularly. In the existing technology, personnel need to climb up to dismantle the large end cover on the top of the ion exchanger tank, extract the old resin inside with a negative pressure pump, and then install the new resin after filling it. This operation requires the cooperation of multiple people and requires climbing. There are also risks of personal injury such as skin corrosion and foreign objects in the eyes, which reduces the safety of the operators. There are many operators, the labor intensity is high, and the replacement efficiency is low. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a converter station resin replacement system based on the negative pressure jet principle. Through a set of operations based on the negative pressure jet principle for the recovery and separation, cleaning and pumping of resin particles in the converter station ion exchanger, the problems of large number of operators, high labor intensity and low replacement efficiency in the existing technology are solved.

[0004] To solve the above technical problems, the present invention provides a technical solution: a converter station resin replacement system based on the negative pressure jet principle, comprising a booster pump, a reversing valve, a resin particle bin, an ion exchanger, a water pump, and a particle recovery bin, characterized in that: the inlet of the booster pump is connected to a water source through a first valve, the outlet of the booster pump is connected to the inlet of the reversing valve through a pipe provided with a pressure gauge, the outlet of the reversing valve is connected to the upper inlet of the ion exchanger through a first pipe, and the first pipe is connected to the resin particle bin through a pipe provided with a second valve, the lower outlet of the ion exchanger is connected to the inlet of the water pump through a second pipe, and the outlet of the water pump is connected to the particle recovery bin through a pipe;

[0005] The first pipe and the second pipe are both concentric sleeves, the reversing valve is a two-position three-way electromagnetic reversing valve, one end of the inner pipe and the outer pipe in the first pipe are respectively connected to the two outlets of the two-position three-way electromagnetic reversing valve, and the outer pipe is connected to the particle recovery bin, and a detachable screen is provided at the inlet of the second pipe.

[0006] Furthermore, a rotating nozzle is provided at the end of the inner tube connected to the upper inlet of the ion exchanger.

[0007] Furthermore, the second pipeline is connected to the inlet of the water pump through a pipeline provided with a rotary valve and a flow meter.

[0008] Furthermore, the pipeline provided with the second valve, the pipeline between the second pipeline and the rotary valve, and the pipeline between the water pump and the particle recovery bin are all transparent steel wire hoses.

[0009] Furthermore, the booster pump is a booster pump with a metering function.

[0010] Furthermore, a water level gauge is provided on the ion exchanger.

[0011] Furthermore, the particle recovery bin is funnel-shaped, and a filter screen and a sewage pipe with a third valve are provided at the bottom thereof.

[0012] The beneficial effects of the utility model are:

[0013] 1. The present application uses a set of negative pressure jet-based operations to recover, separate, clean, and pump resin particles in the converter station ion exchanger; a high-speed jet drives most of the old resin particles out of the ion exchanger, and then a rotating pressurized jet restores the fluidity of the residual resin particles on the side walls and bottom of the ion exchanger, which are extracted through a recovery system and pumped to a two-phase separation system to achieve the recovery of the old resin particles in the ion exchanger. Finally, a high-speed jet takes away the air in the new resin storage bin, forming a negative pressure to suck the new resin particles into the pipeline, and the resin particles and water mixture are transported to the ion exchanger to achieve the filling of the new resin particles in the ion exchanger.

[0014] 2. This application has a simple structure, is easy to use and convenient to operate. The special tool for resin replacement developed by this application realizes the automation and intelligence of resin recovery and replenishment in the form of an integrated control unit, with one-button operation, and does not require the operator to have a high level of relevant professional background; the special tool is mainly composed of some typical mechanical and hydraulic components, the equipment has high reliability, and is easy to maintain and repair; combined with the spatial distribution characteristics of equipment in the workshop, the special tool is equipped with a mobile cart, which can quickly and flexibly reach the designated area.

[0015] 3. This application is safe to operate, healthy and environmentally friendly, water-saving and efficient. The special tool for resin replacement developed is equipped with a resin particle bin. Before the operation, it is only necessary to add an appropriate amount of resin particles to the resin particle bin once, which reduces the contact time between workers and resin, avoids the risks of personal injury such as high-altitude operation, skin corrosion, and foreign objects in the eyes, and improves the safety of workers; the special tool for resin replacement developed is equipped with a resin particle recovery bin, which can automatically separate water and original resin particles, avoiding the random discharge and storage of original resin particles and polluting the environment; the original resin cleaning process adopts a three-stage cleaning process of "large-flow rough flushing - rotary jet fine cleaning - jet suction resin particle filling", ultimately achieving efficient, residue-free, and low-water-consumption resin replacement operations.

[0016] In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only four of the drawings in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a schematic diagram of the structure of this application.

[0019] Figure 2 This is a structural diagram for large-flow rough flushing.

[0020] Figure 3 It is a structural diagram of rotary jet cleaning.

[0021] Figure 4 Schematic diagram of the structure of jet entrainment resin particle filling.

[0022] In the figure, 1-water source, 2-first valve, 3-boosting pump, 4-pressure gauge, 5-two-position three-way electromagnetic reversing valve, 6-resin particle bin, 7-second valve, 8-ion exchanger, 9-water level gauge, 10-rotating nozzle, 11-screw valve, 12-flow meter, 13-water pump, 14-particle recovery bin, 15-filter, 16-third valve, 17-first pipeline, 18-second pipeline, 19-screen;

[0023] A-inner tube, B-outer tube. DETAILED DESCRIPTION

[0024] The following describes embodiments of the present invention in detail with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the accompanying drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0025] In this application, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in this utility model according to the specific circumstances.

[0026] The names of the messages or information exchanged between multiple devices in the embodiments of the present invention are only used for illustrative purposes and are not used to limit the scope of these messages or information. Example 1

[0027] like Figure 1-4 As shown, a resin replacement system for a converter station based on the negative pressure jet principle includes a booster pump 3, a reversing valve, a resin particle bin 6, an ion exchanger 8, a water pump 13, and a particle recovery bin 14. The booster pump 3 is a booster pump 3 with a metering function. The inlet of the booster pump 3 is connected to the water source 1 through a first valve 2, and the outlet of the booster pump 3 is connected to the inlet of the reversing valve through a pipeline provided with a pressure gauge 4. The outlet of the reversing valve is connected to the upper inlet of the ion exchanger through a first pipeline 17, and the first pipeline 17 is connected to the resin particle bin 6 through a pipeline provided with a second valve 7. The lower outlet of the ion exchanger is connected to the inlet of the water pump 13 through a second pipeline 18, and the outlet of the water pump 13 is connected to the particle recovery bin 14 through a pipeline.

[0028] First conduit 17 and second conduit 18 are concentric sleeves, and the reversing valve is a two-position, three-way electromagnetic reversing valve 5. One end of inner tube A and outer tube B in first conduit 17 are connected to the two outlets of two-position, three-way electromagnetic reversing valve 5, respectively, and outer tube B is connected to particle recovery bin 14. The outlet and inlet of first conduit 17 and second conduit 18 are respectively connected to the upper and lower inlets and outlets of ion exchanger 8, forming a medium flow system. A water flow at a certain speed drives the old resin particles out of ion exchanger 8. Similarly, the high-speed water flow entrains the new resin particles in the particle bin to form a two-phase mixture of particles and water, which then flows into ion exchanger 8, thereby filling ion exchanger 8 with new resin particles.

[0029] Among them, the second pipeline 18 is connected to the inlet of the water pump 13 through a pipeline provided with a rotary valve 11 and a flow meter 12; a water level gauge 9 is provided on the ion exchanger; pay attention to observe the water level gauge 9 so that the water in the tank always submerges the highest level of the resin particles, that is, appropriately adjust the rotary valve 11 so that the value at the flow meter 12 is less than the flow rate of the booster pump 3, so that the input flow rate can be greater than the discharge flow rate.

[0030] Among them, the pipeline with the second valve 7, the pipeline between the second pipeline 18 and the rotary valve 11, and the pipeline between the water pump 13 and the particle recovery bin 14 are all transparent steel wire hoses; while the transparent steel wire hoses ensure strength, the internal color can also be observed, which is convenient for judging whether the resin particles are flushed and added.

[0031] Among them, a detachable screen 19 is provided at the inlet of the second pipe 18. When the old resin particles in the ion exchanger 8 are discharged and new resin particles are added, the second pipe 18 is disassembled from the lower outlet of the ion exchanger 8, and the screen 19 is set at the inlet of the second pipe 18 to filter the added new resin particles to prevent the new resin particles from being discharged again into the particle recovery bin 14 under the impact of the water flow. Example 2

[0032] like Figure 3 As shown, this embodiment is obtained by further describing the technical features such as the rotary nozzle 10 on the basis of the first embodiment. The remaining technical features are the same as those of the first embodiment, and the similarities are not repeated here. Among them, the difference between this embodiment and the first embodiment is that the rotary nozzle 10 is provided at the end of the inner tube A connected to the upper inlet of the ion exchanger.

[0033] In this embodiment, the rotary nozzle 10 rotates under the impact of the high-pressure water flow to form a rotating water flow, which is convenient for suspending the old resin particles settled at the bottom of the ion exchanger. Example 3

[0034] like Figure 1 As shown, this embodiment is obtained by adding technical features such as a filter screen 15 on the basis of the second embodiment. The remaining technical features are the same as those of the second embodiment, and the similarities are not repeated here. Among them, the difference between this embodiment and the second embodiment is that: the particle recovery bin 14 is funnel-shaped, and a filter screen 15 and a sewage pipe with a third valve 16 are provided at the bottom.

[0035] In this embodiment, the filter 15 can filter and recover the old resin particles flushed out from the ion exchanger, and facilitate the subsequent treatment of the cleaning water.

[0036] The overall technical solution formed by the above embodiments is used as follows:

[0037] according to Figure 1As shown, the present invention is connected to an ion exchanger 8. Initially, inner tube A is located at the upper and lower entrances of ion exchanger 8, not reaching the interior of the tank. Second valve 7 of resin pellet bin 6 is closed, and new resin pellets are quantitatively loaded into the resin pellet bin 6 based on the volume of ion exchanger 8. The process flow can be divided into three steps: high-flow rough flushing, rotary jet fine cleaning, and jet entrainment of resin pellets.

[0038] The process of high-flow rough flushing is as follows: after opening the first valve 2 and the third valve 16, start the water pump 13 and the booster pump 3, and make the two-position three-way electromagnetic reversing valve 5 in the open state of the outer tube B. At this time, a large flow of water continuously and steadily flows into the ion exchanger 8, and drives most of the old resin particles in the ion exchanger 8 to flow out from the lower outlet, and is accelerated to be discharged into the particle recovery bin 14 after passing through the rotary valve 11, the flow meter 12 and the water pump 13. The filter screen retains the old resin particles in the recovery bin, and the filtered water flows into the drain pipe through the third valve 16; when no large amount of particles are observed to flow out through the transparent steel wire hose between the second pipe 18 and the rotary valve 11, the high-flow rough flushing is completed and the water pump 13 and the booster pump 3 are turned off.

[0039] The process of rotary jet cleaning is as follows: the inner tubes A at the upper inlet and lower outlet of the ion exchanger 8 are extended to the bottom of the tank of the ion exchanger 8, the water pump 13 and the booster pump 3 are started, and the two-position three-way electromagnetic reversing valve 5 is in the open state of the inner tube A. The rotary jet ejected from the inner tube A stirs up the old resin particles settled at the bottom and puts them in a suspended state, which is sucked into the particle recovery bin 14 by the water pump 13. The old resin particles are separated by the filter screen 15 and remain in the particle recovery bin 14, and the filtered water flows into the drain pipe through the third valve 16; when no large amount of particles are observed to flow out through the transparent steel wire hose between the second pipe 18 and the rotary valve 11, the rotary jet cleaning is completed, and the water pump 13 and the booster pump 3 are turned off.

[0040] The process of jet entrainment of resin particles is as follows: the inner tube A is pulled out to the upper inlet and lower outlet of the ion exchanger 8, the second pipe 18 is disconnected from the lower outlet of the ion exchanger 8, and a screen 19 is set at the inlet of the second pipe 18. The water pump 13 and the booster pump 3 are started, and the two-position three-way electromagnetic reversing valve 5 is in the open state of the outer tube B. The second valve 7 is opened to connect the resin particle bin 6 with the outer tube B. At this time, the high-speed flowing water forms a negative pressure, which entrains the resin particles in the resin particle bin 6 into the water flow and sends them into the ion exchanger 8. The new resin particles are retained in the ion exchanger 8 under the action of the screen 19. When it is observed that there are no resin particles in the pipe where the second valve 7 is set, the new resin particle filling is completed. The water pump 13, the booster pump 3, the first valve 2, the second valve 7 and the third valve 16 are closed to complete the jet entrainment of resin particles.

[0041] The rotary valve 11 is adjusted so that the value at the flow meter 12 is less than the flow of the booster pump 3, so that the input flow rate can be greater than the discharge flow rate, and the water level of the water level gauge 9 is observed to ensure that the water in the ion exchanger 8 always submerges the highest level of the resin particles.

[0042] Note that the above are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions are readily apparent to those skilled in the art without departing from the scope of protection of the present invention. Therefore, while the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the appended claims.

Claims

1. A resin replacement system for a converter station based on the negative pressure jet principle, comprising a booster pump, a reversing valve, a resin particle bin, an ion exchanger, a water pump, and a particle recovery bin, characterized by: The inlet of the booster pump is connected to the water source through a first valve, the outlet of the booster pump is connected to the inlet of the reversing valve through a pipe provided with a pressure gauge, the outlet of the reversing valve is connected to the upper inlet of the ion exchanger through a first pipe, and the first pipe is connected to the resin particle bin through a pipe provided with a second valve, the lower outlet of the ion exchanger is connected to the inlet of the water pump through a second pipe, and the outlet of the water pump is connected to the particle recovery bin through a pipe; The first pipe and the second pipe are both concentric sleeves, the reversing valve is a two-position three-way electromagnetic reversing valve, one end of the inner pipe and the outer pipe in the first pipe are respectively connected to the two outlets of the two-position three-way electromagnetic reversing valve, and the outer pipe is connected to the particle recovery bin, and a detachable screen is provided at the inlet of the second pipe.

2. The converter station resin replacement system based on the negative pressure jet principle according to claim 1 is characterized by: The end of the inner tube communicated with the upper inlet of the ion exchanger is provided with a rotating nozzle.

3. The converter station resin replacement system based on the negative pressure jet principle according to claim 1 is characterized by: The second pipeline is connected to the inlet of the water pump through a pipeline provided with a rotary valve and a flow meter.

4. The converter station resin replacement system based on the negative pressure jet principle according to claim 3 is characterized by: The pipeline provided with the second valve, the pipeline between the second pipeline and the rotary valve, and the pipeline between the water pump and the particle recovery bin are all transparent steel wire hoses.

5. The converter station resin replacement system based on the negative pressure jet principle according to claim 1 is characterized by: The booster pump is a booster pump with a metering function.

6. The converter station resin replacement system based on the negative pressure jet principle according to claim 1 is characterized by: The ion exchanger is provided with a water level gauge.

7. The converter station resin replacement system based on the negative pressure jet principle according to claim 1 is characterized by: The particle recovery bin is funnel-shaped, and a filter screen and a sewage pipe with a third valve are provided at the bottom of the bin.

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