JPH0546827U - Pellet resin transfer device - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] The purpose of the transfer of pelletized resin is to reduce the working time and the labor of workers. [Structure] High-pressure water is jetted from the nozzle pipe to an ejector 6 in which the nozzle pipe is located in the negative-pressure chamber to generate negative pressure in the negative-pressure chamber so that the pellet-shaped resin flows in and the pellet-shaped resin is transferred by the high-pressure water. This is a pellet-shaped resin transfer device. Also, an ejector 6 that positions the nozzle pipe in the negative pressure chamber to inject high-pressure water from the nozzle pipe to generate negative pressure in the negative pressure chamber to transfer the pellet resin, and a pump 2 that pumps high-pressure water to the ejector. , A pellet-shaped resin transfer device in which high-pressure water and valves 24 and 25 for injecting and blocking high-pressure water and pellet-shaped resin to an ejector are mounted on a carriage.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a pellet-shaped resin transfer device, and in particular, for resin extraction and resin filling work in a tower filled with ion exchange resin, water such as pure water or condensate is used as a medium for suctioning resin in a short time. It is to be transferred without damaging it.

[0002]

[Prior Art]

 The makeup water for power generation at thermal power plants uses high quality water from which impurities contained in raw water have been removed. A pure water device is installed as a device for obtaining this high-quality water. There are various types of pure water devices in combination, but generally, there are many two-bed type devices, which usually have a cation tower and an anion tower. The cation column and anion column are packed with a cation exchanger and an anion exchanger, respectively. This ion exchanger is made of pelletized resin and is called an ion exchange resin.

Ion exchange resins are usually fine particles of 0.3 to 1.68 mm. The deionized water equipment is regularly inspected and maintained for regular repairs. At this time, it is necessary to take out part or all of the ion exchange resin in the tower outside the tower. To remove the ion-exchange resin, a worker enters the tower from the manhole at the top of the tower, scoops the resin using a scoop or bucket, hands it to the worker, and carries it out of the tower with a bucket. In addition, the same method is used to fill the ion exchange resin after the completion of internal inspection and maintenance.

[0004]

[Problems to be solved by the device]

 It is necessary to reduce the labor of workers and shorten the work time in carrying out the ion-exchange resin filled in the tower to the outside of the tower and filling the ion-exchange resin in the tower after maintenance. is there.

[0005]

[Means for Solving the Problems] In view of the above circumstances, the present invention transfers pelletized resin by suction force by an ejector in order to reduce the labor of a worker and the work time. High pressure water is jetted from a nozzle pipe to an ejector whose pipe is located in the negative pressure chamber to generate a negative pressure in the negative pressure chamber so that the pelletized resin flows in and the pelletized resin is transferred by the high pressure water. Is.

Further, the nozzle tube can be easily moved to work in other places, the nozzle tube is positioned in the negative pressure chamber, high-pressure water is jetted from the nozzle tube, and negative pressure is generated in the negative pressure chamber to form pellets. An ejector for transferring resin, a pump for pumping high-pressure water to the ejector, and a valve for inflowing and blocking high-pressure water and pelletized resin into the ejector are mounted on the carriage.

[0007]

【Example】

 The present invention will be described in detail below based on specific embodiments shown in the accompanying drawings. In FIG. 1, a water suction pipe 3 made of meshed transparent vinyl having the same diameter is connected to the tip of the water suction port 23 of the self-priming turbine pump 2 installed on the carriage 1. Pure water is poured into the water tank 4, and the other end of the water suction pipe 3 is inserted into the water tank 4.

The resin transfer pipe 7 made of mesh-filled transparent vinyl is connected to the discharge port 22 of the ejector 6 connected to the stainless steel pipe 5 on the discharge side of the self-priming turbine pump 2, and the other end of the resin transfer pipe 7 is made of a mesh. The wire mesh is placed on the water / resin separator 8 stretched. Connect the resin suction pipe 9 made of meshed transparent vinyl to the resin suction port 10 of the ejector 6, and insert the other end of the resin suction pipe 9 into the tower from the manhole 12 above the cation tower 11 filled with the ion exchange resin. To do.

Reference numeral 13 is a motor for driving the self-priming turbine pump 2, reference numeral 14 is a pressure gauge connected to the stainless tube 5, reference numeral 15 is a flow meter, and reference numeral 16 is a resin inlet / outlet tank. The self-priming turbine pump 2, the ejector 6, the valve, and the like are mounted on the trolley 1 and are movable so that work at other locations can be performed easily. The details are shown in FIGS. 2 and 3.

That is, the trolley 1 with the casters 21 is movable, and the casters 21 are provided with a brake (not shown) for stopping at a predetermined position. A self-priming turbine pump 2 is provided on a trolley 1, and this self-priming turbine pump 2 is driven by a motor 13. The ejector 6 is horizontally arranged on the trolley 1 with the discharge port 22 facing outward, and is connected by a stainless steel pipe 5 with a water suction port 23, a check valve 24, and a sluice valve (stop valve) 25 interposed between them. The pipe 5 is provided with a flow meter 14 and a pressure gauge 15.

A resin suction port 10 is provided on the proximal end side of the ejector 6, and a make-up water port 28 is branched in the middle of the stainless steel pipe 5 with a sluice valve (make-up water valve) 27 interposed. Here, when the motor 13 is driven, the self-priming turbine pump 2 operates, and water is supplied from the water suction port 23 to the ejector 6 through the check valve 24, the sluice valve 25, and the stainless steel pipe 5, and its discharge port. It is discharged from 22.

Since the ejector 6, the self-priming turbine pump 2, the check valve 24, the sluice valve 25, etc. are compactly mounted on the trolley 1, it can be easily moved to another place. The details of the ejector 6 are shown in Fig. 4. The ejector 6 is composed of a nozzle 31 made of steel and used as high-pressure water, and a throat 32 for generating a negative pressure and sucking and transporting pelletized resin. Is coated.

The nozzle 31 is formed into a nozzle tube 33 having a taper-shaped outer diameter, which gradually decreases in diameter as it goes downstream in order to turn the water supplied from the self-priming turbine pump 2 into high-pressure water. To do. Since the throat 32 generates a negative pressure by the high-pressure water sprayed from the nozzle pipe 33 of the nozzle 31, a cylindrical space is provided in the portion that receives the nozzle pipe 33, and the nozzle 31 is internally fitted and screwed into the nozzle pipe. A negative pressure chamber 34 is formed between the negative pressure chamber 33 and 33, and the resin suction port 10 is provided so as to face the negative pressure chamber 34. In the flow path of the throat 32, the tip portion of the nozzle pipe 33 becomes a dish-like flow path 35 so that high-pressure water can be easily received, and a flow path 36 of the same diameter is connected, and the diameter gradually increases from the end to the downstream side. And the discharge port 22 is formed at the tip.

The caliber of the same-diameter flow path 37 of the throat 32, the caliber of the discharge port 22, and the caliber of the inlet side and the outlet side of the nozzle pipe 33 of the nozzle 31 are the decisive factors for the pellet-shaped resin transfer. The pure water enters from the inlet of the nozzle pipe 33, the flow velocity is increased by the change of the diameter of the nozzle pipe 33, and the pure water is ejected from the dish-shaped flow passage 35 of the throat 32. The negative pressure portion is formed in the negative pressure chamber 34 by the jetting force of the pure water at the outlet of the nozzle pipe 33 of the nozzle 31, and the resin suction port 10 is formed to have a negative pressure so that the inside of the resin suction pipe 9 is made negative pressure. The pellet-shaped resin is sucked into the resin suction port 10, and the pellet-shaped resin flows into the dish-shaped channel 35, the same-diameter channel 36, and the tapered channel 37 together with the high-pressure water, and is discharged from the discharge port 22. ..

The self-priming turbine pump 2 is started by the motor 13 with the check valve 24 and the gate valve 25 fully opened and the valve communicating with the resin suction port 10 fully closed. After starting the self-priming turbine pump 2, pure water passes through the water tank 4-> self-priming turbine pump 2-> check valve 24 / gate valve 25-> ejector 6-> water / resin separator 8-> water tank 4, as can be seen in FIG. Circulate in.

Pure water discharged from the self-priming turbine pump 2 passes through the check valve 24 and the sluice valve 25, and then passes through the inside of the ejector 6. The resin suction pipe 9 is attached to the resin suction port 10 facing the negative pressure chamber 34 at the fitting portion of the throat 32 and the nozzle 31. An operator located in the manhole 12 above the cation tower 11 moves the tip of the resin suction pipe 9 to continuously suck the resin.

The pelletized resin in the cation tower 11 passes through the resin suction pipe 9 through the ejector 6 by the suction of the ejector 6, and is mixed with pure water in the dish-like flow path 35 to be mixed with the pure water flow. It is transferred to the water / resin separator 8 through the resin transfer pipe 7. The water / resin separator 8 is provided with a mesh metal net capable of capturing pelletized resin, and pure water is collected in the lower water tank 4.

On the other hand, the pellet-shaped resin captured in the water / resin separator 8 passes through a tray (not shown) having an appropriate slope from the portion exceeding the angle of repose, and the resin is absorbed by the weight of the pellet-shaped resin. It falls into the entry / exit tank 16 and is collected. The pure water collected in the water tank 4 is supplied to the self-priming turbine pump 2 through the water suction pipe 3 and circulates in the system.

Next, filling the resin into the cation tower 11 will be described with reference to FIG. The water tank 4 is filled with pure water, and the inside of the water tank 4 and the water suction port 23 of the self-priming turbine pump 2 are connected by the water suction pipe 3 made of transparent netted vinyl for suction. On the other hand, a resin suction pipe 49 made of mesh-filled transparent vinyl is connected to the resin suction port 10 of the ejector 6, and the other end is inserted into the resin inlet / outlet tank 16. Further, a netted transparent vinyl resin transfer pipe 47 is connected to the discharge port 22 of the ejector 6, and the other end is inserted from the manhole 12 of the cation tower 11 into a pellet-shaped resin filling portion in the tower.

After starting the self-priming turbine pump 2, the pure water becomes a route of the water tank 4 → the self-priming turbine pump 2 → the chuck valve 24 / the sluice valve 25 → the ejector 6 → the cation tower 11, and the pellet resin is the resin inlet / outlet tank 16 -> Resin suction pipe 49-> Ejector 6-> Resin transfer pipe 47-> It is transferred to the inside of the cation tower 11, and the pellet resin is filled in the cation tower 11.

[0021]

[Effect of the device]

 The present invention, as described above, injects high-pressure water from the nozzle into the ejector with the nozzle tube located in the negative pressure chamber to generate negative pressure in the negative pressure chamber to allow the pellet resin to flow into the high-pressure water. The pellet-shaped resin transfer device is designed to transfer the pellet-shaped resin by means of a nozzle tube located inside the negative pressure chamber to inject high-pressure water from the nozzle tube to generate negative pressure in the negative-pressure chamber. This is a pellet-shaped resin transfer device equipped with an ejector for transferring resin, a pump for sending high-pressure water to the ejector under pressure, and a valve for shutting off and shutting off high-pressure water and pellet-shaped resin into the ejector. In transferring resinous resin, the work time will be greatly shortened and the labor of the workers can be reduced. As an example, when the amount of resin removed is 480 L, the total working time was 48 hours in the past, but when the pelletized resin transfer device of the present invention was used, the total working time was 2 hours.

[Brief description of drawings]

FIG. 1 is a diagram showing an overall outline of a state in which pellet resin is extracted in a specific embodiment of a pellet resin resin transfer device of the present invention.

FIG. 2 is a front view showing a state in which an ejector, a pump for driving the ejector, a valve, and the like are mounted on a carriage.

FIG. 3 is a plan view of FIG.

FIG. 4 is a vertical sectional view of an ejector.

FIG. 5 is a diagram showing an overall outline of a state in which resin is packed in a tower using the pellet-shaped resin transfer device of the present invention.

[Explanation of symbols]

 33 ... Nozzle pipe 34 ... Negative pressure chamber 6 ... Ejector 2 ... Self-priming turbine pump (example of pump) 24 ... Check valve (example of valve) 25 ... Gate valve (example of valve)

Claims (2)

[Scope of utility model registration request] 1. A high pressure water is jetted from the nozzle pipe to an ejector in which the nozzle pipe is located in the negative pressure chamber to generate a negative pressure in the negative pressure chamber so that the pellet resin is flowed in and the pellet resin is transferred by the high pressure water. A pellet-shaped resin transfer device, characterized in that 2. An ejector for positioning a nozzle tube in a negative pressure chamber to inject high-pressure water from the nozzle tube to generate a negative pressure in the negative pressure chamber to transfer pelletized resin, and a pump for pumping high-pressure water to the ejector. A pellet-shaped resin transfer device characterized in that a high-pressure water to the ejector and a valve for injecting / shutting off the pellet-shaped resin are mounted on a carriage.