JPH0623355A - Equipment for regenerating ion exchange resin - Google Patents

Abstract

PURPOSE:To enhance the rate of operation of an ion exchange resin regenerating apparatus and investment efficiency by providing the ion exchange regenerating apparatus sahared with a plurality of desalting devices due to an ion exchange resin and a means selecting one of the desalting devices to send the ion exchange resin to the regenerating apparatus and returning the regenerated ion exchange resin to the selected desalting means. CONSTITUTION:For example, when the regenerating treatment of the ion exchange resin of a condensed water desalting device 5a is required, a signal 9a to that effect is transmitted and selected by a selector 13 to be inputted to a controller 10 as a signal 14. Wherein, a signal 16 is transmitted from the controller 10 to close a valve 12b and a valve 12a is fully opened and a regeneration device 7 is operated by a signal 15 to transfer the ion exchange resin of the desalting device 5a to the regeneration device 7 through a pipeline 8a and, after the completion of regeneration, the regenerated resin is again returned to the desalting device 5a through the pipeline 8a. The regeneration of the ion exchange resin of a condensed water desalting device 5b is also performed in the same way and the ion exchange resin is transferred to the regeneration device 7 through a pipeline 8b and the regenerated resin is returned to the desalting device 5b. As mentioned above, regeneration treatment is performed by one regeneration device 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a regeneration facility for ion exchange resins applied to condensate demineralizers for thermal power plants and nuclear power plants.

[0002]

2. Description of the Related Art FIG. 2 is an explanatory view of a conventional ion exchange resin regeneration facility used in a condensate demineralizer (abbreviated as "condemi") in a thermal power plant or a nuclear power plant. In the figure, the condemi 5a and 5b and the regenerators 7a and 7b are provided in each of the power generation unit A and the power generation unit B in one power generation plant. The steam sent from the steam generators 1a and 1b to the turbines 2a and 2b in the respective power generation units A and B is the turbines 2a and 2b.
After working at, the condensers 3a, 3b become condensate and are returned to the steam generators 1a, 1b by the pumps 4, 6.
Condensate is purified by the condemi 5a and 5b on the way.

When the ion exchange resin used in the condemi 5a, 5b has deteriorated in performance and has reached the time when a regeneration process is required, the condemi 5a, 5b emit signals 9a, 9b, and control which receives this signal The container 10 is the reproduction device 7
The signals 11a and 11b for activating a and 7b are output, and the ion exchange resin in the condemi 5a and 5b is the conduit 8a,
By 8b, it is transferred to the reproducing devices 7a and 7b and is reproduced. The regenerated ion-exchange resin is pipe lines 8a and 8b.
Is returned to the condemi 5a, 5b. The frequency of this regeneration process is once every two days, and the time required for each is about several hours.

[0004]

As described above, in the conventional ion-exchange resin regeneration equipment, the condemi 5a, 5
When the ion exchange resin used in b has deteriorated in performance and reaches the time required for the regeneration treatment, the ion exchange resin is transferred to the regeneration devices 7a and 7b, and after the regeneration treatment, is returned to the condemi 5a and 5b. The frequency of this regeneration process is once every two days, and the time required for each is about several hours.
Therefore, the operating rates of the reproducing devices 7a and 7b are extremely low, such as several hours in two days, and the investment efficiency is very poor.

[0005]

Means for Solving the Problems An object of the present invention is to regenerate an ion-exchange resin by solving the above-mentioned problems. A plurality of desalting devices for desalting with an ion-exchange resin, and a plurality of the desalting devices are used. An ion exchange resin regenerator, which is provided so as to be shared with the apparatus through a pipe, and the desalting device are selected, and the ion exchange resin is transferred to the regenerator through the pipe and regenerated. And a means for returning to the original desalting apparatus later.

[0006]

That is, in the ion exchange resin regenerating equipment according to the present invention, the ion exchange resin regenerating apparatus is provided so as to be shared by a plurality of desalting apparatuses for desalting with the ion exchange resin. A desalting device is selected, and the ion exchange resin is transferred to a regenerating device through a pipe and is regenerated and then returned to the original desalting device. It becomes possible to use the common playback device for the playback processing of.

[0007]

EXAMPLE FIG. 1 is an explanatory view of an ion exchange resin recycling facility according to an example of the present invention. In the figure, the ion-exchange resin regeneration equipment according to the present embodiment is used for a thermal power and a condensate demineralizer (abbreviation: condemi) in a nuclear power plant.
And the power generation unit B is provided with condemi 5a and 5b, respectively. In each of the power generation units A and B, the steam sent from the steam generators 1a and 1b to the turbines 2a and 2b becomes condensate in the condensers 3a and 3b after working in the turbines 2a and 2b, and the pumps 4, 6 Is returned to the steam generators 1a, 1b by the condemi 5
Condensate is purified by a and b.

When the performance of the ion exchange resin used in the condemi 5a, 5b is deteriorated and the time required for the regeneration treatment is reached, the ion exchange resin in the condemi 5a, 5b is automatically transferred to the regeneration device 7. After being recycled to the condemi 5a and 5b, the frequency of this recycling is once every two days, and the time required for each is about several hours. Therefore, if each condominium 5a, 5b is provided with one regenerator 7, the operating rate of the regenerator 7 is extremely low, such as several hours in two days, and the investment efficiency is very poor. In the regeneration equipment, as shown in the figure, one regeneration treatment 7 is commonly used for the power generation units A and B, conduits 8a and 8b from the respective condemi 5a and 5b to the regeneration device 7, and the respective condemi 5a,
Selector 1 for selecting signals 9a and 9b transmitted from 5b
3 and signals 11, 15, 1 for receiving the signal 14 from the selector 13 and operating the regenerator 7, valves 12a, 12b.
A controller 10 for transmitting 6 is provided. The selector 13 is a device for selecting which of the signals 9a and 9b is prioritized when the signals 9a and 9b requesting regeneration of the ion exchange resin are simultaneously transmitted from the condemi 5a and 5b.
The controller 10 transmits signals 16 and 15 that close the valve 12b and open the valve 12a when the ion exchange resin is regenerated in the condemi 5a, and close the valve 12a when the ion exchange resin is regenerated in the condemi 5b. Signals 15 and 16 for opening 12b are transmitted. Even when the number of power generation units is three or more, one reproducing device can be shared in the same manner.

For example, when the ion-exchange resin in the condemi 5a needs to be regenerated, a signal 9a indicating that the ion-exchange resin in the condemi 5a needs to be regenerated is transmitted, and the signal 9a is sent to the selector 13. Signal 1 selected
4 is input to the controller 10. Then, the signal 16 is transmitted from the controller 10, the valve 12b is closed, the valve 12a is fully opened by the signal 15, the regeneration device 7 is operated by the signal 11, and the ion exchange resin in the condemi 5a is passed through the conduit 8a. It is transferred to the regenerator 7 and is returned to the condemi 5a again via the pipe 8a after the regenerating process is completed. Condemi 5b
Similarly, in the case of, the ion exchange resin in the condemi 5b is transferred to the regenerator 7 via the conduit 8b, regenerated and returned. In this way, the regeneration treatment of the ion exchange resin between the condemi 5a and the condemi 5b can be performed by the single regenerating device 7, and the regenerating device 7 conventionally provided for each condemi 5a, 5b is Since it is possible to cope with this by providing a smaller number of reproducing devices 7 than 5b, it is possible to reduce the equipment cost and installation space of the reproducing devices 7, and this has a large economic effect.

[0010]

EFFECTS OF THE INVENTION The ion exchange resin regeneration equipment according to the present invention is configured as described above, and since the ion exchange resin regeneration treatment in a plurality of desalting apparatuses can be handled by a common regeneration apparatus, The operating rate of the playback equipment is increased and the investment efficiency is improved.

[Brief description of drawings]

FIG. 1 is a system diagram of an ion-exchange resin regeneration facility according to an embodiment of the present invention.

FIG. 2 is a system diagram of a conventional ion exchange resin regeneration facility.

[Explanation of symbols]

 1 Steam Generator 2 Turbine 3 Condenser 4 Pump 5 Condemi 6 Pump 7 Regenerator 8 Pipeline 9 Signal 10 Controller 11 Signal 12 Valve 13 Selector 14 Signal 15 Signal 16 Signal

Claims (1)

[Claims] 1. A plurality of desalting devices for desalting with an ion-exchange resin, an ion-exchange resin regenerating device shared by the plurality of desalting devices via a pipeline, and the desalting device. Regeneration equipment for ion-exchange resin, comprising means for selecting an apparatus and transferring the ion-exchange resin to the regenerator through the conduit for regeneration treatment and then returning to the original desalination apparatus. .