JPS61287404A - Collecting device for coagulatory material - Google Patents

Abstract

PURPOSE:To improve performance for feeding coagulatory material to a collecting and recovering device by providing a cooling unit serving also as a heating unit contg. a coolant generating system and a heat medium generating system connected to a compressor to each collecting device for the coagulatory material. CONSTITUTION:Coagulatory gas generated in a generating device N1 is fed to a cooling/heating collector A11 by opening an introducing value V1 at the generating side N11 of the gas wherein a heating surface a11 is held at cold condition by cooling previously with a coolant fed from a cooling/heating unit B11. Thus, the coagulatory gas is collected by being cooled and coagulated. When the collector A11 is filled fully by the coagulated material, the introducing value V1 is closed and the introducing valve V6 is opened and the coagulatory gas is introduced into the cooling/heating collector A12 from a gas generating side N12, and the coagulatory gas is collected similarly. During this collecting operation using the collector A12, collected coagulatory gas is transferred to a receiving vessel D11 in the system of the collector A1.

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention provides a plurality of cooling systems connected to a condensable gas generator to cool and collect the gas, heat it, and supply it to a collection container or the like. The present invention relates to a collection device for condensable substances that has a heating type collector and is characterized by a cooling/heating mechanism of the collector.

(Prior Art) A conventional example of the collection device for condensable substances (naphthalene, benzene, etc.) is connected (in parallel) to a condensable gas generator (plant - not shown) as shown in Fig. 8. The heat medium supplied from the heat exchanger (B) having the heating source (C) is transferred to the plurality of cooling/heating type collectors (A) through the main pipe (3) and the branch pipe (
Xl) (X2) (X3) The refrigerant supplied from the heat exchanger (C) having the collector (a heating unit that supplies and circulates to each gradient, and a cooling source stop) is supplied to the main pipe (A). ,
The collector (A) passes through branch pipes (Yl) (Y2) (Y3).
), and opening/closing valves are provided in the front and rear piping of the collector (A) and the piping between the units, so that all the traps can be handled by one cooling unit. A refrigerant is supplied to the collector (A) to cool, condense and collect the introduced condensable gas, and a heat medium is supplied to all the collectors (A) and collected by one heating unit. The structure is such that the collected coagulable substances are melted or sublimated and then supplied to a collection container or the like for recovery. It is designed to capture gas continuously.

(Problems with the conventional technology) In the conventional collection device for condensable substances, multiple cooling and
Since a heating type collector is provided with one cooling unit and one heating unit in common, each cooling source and heating source have a large capacity, especially when cooling at low temperatures. The refrigeration capacity of the plant has reached over 3 tons, and due to the annual open inspection required by the High Pressure Gas Safety Regulations, all of the collectors have to be stopped, that is, the entire plant has to be shut down, resulting in a drop in plant availability. Significantly reduced.

In addition, in order to avoid the above situation, it is necessary to install a cooling unit and a heating unit for each collector, which requires duplication of various equipment and piping loops, and alternate switching operation. The structure becomes complicated and the cost increases, resulting in a heavy economic burden.

Furthermore, heat is exchanged in a heat exchanger using the intermediate cooling/heating medium of the cooling source and heating source in the cooling unit and heating unit, and the cooling/heating medium supplied from the heat exchanger is used to transfer heat to the collector. Since it uses an indirect cooling/heating method that transfers electricity and receives electricity, a decrease in thermal efficiency is inevitable.

Furthermore, it is necessary to transport the refrigerant and heat medium over long distances to the collectors scattered throughout the plant, and in particular, the transport of low-temperature refrigerant is difficult due to the absorption of heat along the way. Because there is a risk that the product may not be delivered at the required temperature,
It is necessary to use a lower temperature refrigerant that allows for the temperature rise due to heat absorption in advance, which wastes energy and requires additional transportation energy.

All of the above-mentioned drawbacks include the fact that they become a major hindrance in large-scale plants where a large number of the collectors are used.

(Objective of the Invention, Means for Solving Problems) The present invention was developed in order to deal with the problems of the conventional collection devices for condensable substances. It is characterized by a configuration in which each of the plurality of cooling/heating type collectors connected to the device is provided with a cooling/heating unit having a refrigerant generation system and a heating medium generation system connected to a compressor. By connecting multiple cooling/heating type collectors to a gas generator and providing a cooling/heating unit for each collector, condensable gas continuously generated by the generator can be continuously collected. The present invention has a refrigerant generation system and a heating medium generation system that are connected to a compressor unit, and the collection device can be inspected and repaired individually without stopping the operation of the generator to increase the operating rate. By installing a cooling and heating unit,
It has excellent refrigerant and heat medium generation and supply functions, greatly simplifies the structure, enables compaction, and significantly improves the collection performance of condensable substances and the supply performance to recovery equipment, etc. The object of the present invention is to provide a collection device for condensable substances that solves the conventional problems such as.

(Embodiment of the invention) An embodiment of the present invention is shown in Fig. 1 to #1IJ7, and Fig. 1 and Fig. 2 are the first embodiment of the present invention, and (N1) in the figure A generator that continuously generates sexual substances (
plant), and the generator (N1)
A cooling/heating type collector (A11) + (A1□ ) are connected to each other, and the cooling/heating type collector (A□I)t
(AI□) has a heat transfer surface (C1,) for cooling and heating, (
α1□) is built-in, and cooling/heating units (B□□) and (B1□) having a refrigerant generation system and a heat medium generation system connected to a compressor are connected. In addition, the mi device (A11), (A12)
ni, the collection container (
D, □) and (D1□) are connected.

Furthermore, the cooling/heating unit) (B1□) will be explained in detail, especially the compressor (
C,), a refrigerant in which a condenser (cl) with a cooling water pipe (h□) connected to the discharge side of the compressor (C'1), a refrigerant supply valve α3) and an expansion valve α4) are arranged in series. generation system, the discharge side of the compressor (C1);
The refrigerant generation system consists of an auxiliary cooling/heater (-2) with a cooling water or steam pipe (A2) connected to a heating medium supply valve α5), and a heating medium generation system in which a heating medium supply valve α5) is arranged in series. and the heat medium generation system are arranged in parallel, and both systems are connected to the heat transfer surface (C1□) side of the cooling/heating type collector (A□,) by a series of common piping. A circulation pipe is connected to the compressor (C1) from the heat transfer surface (-11) side, and the cooling/heating unit (B, □
) also has the same configuration as above.

(Function) The first embodiment of the present invention shown in FIG. When the plant starts operating, it takes a long time to shut down and restart (the production volume decreases significantly during that time, or the labor costs are high for the work).
It is a device that has significant disadvantages such as easy mechanical damage due to startup and stoppage, and the condensable gas generated in the generator (to the generator) is collected by supplying it to the cooling/heating type collector (A1). When doing so, open the receiving valve α1) on the gas generation port (N1□) side, and cool the heat transfer surface (α□1) in advance with the refrigerant supplied from the cooling/heating unit (B1). The condensable gas introduced into the collector (A, □) is cooled, condensed, solidified, and collected in the collector. During the collection, in the cooling and heating unit, discharge gas (compressed gas) from the compressor (C1) is condensed in the condenser (#1), and the condensed liquid is passed through the refrigerant supply valve (C3).
, a refrigerant generation system in which the low-temperature gas, that is, the refrigerant, passes through the expansion valve (C4), cools the heat transfer surface (C1,) in the collector (A1,), and is then circulated to the compressor (C1) via the circulation pipe. (during this period, the heat medium generation system is inactive), and the mechanism that circulates from the compressor (C1) through each of the above devices is called a refrigerator, and its refrigerating capacity is equal to that of the condenser. It is determined by the size of (C1).

If the collection is continued, the amount of coagulable substances collected in the collector (A1□) increases until it is full, so the intake valve (vl
) is closed and the intake valve (C6 is opened) to cool and cool the continuously generated condensable gas from the gas generation port (N1□) side.
The condensable gas is introduced into a heating type collector (A1□) and is continuously collected by the same action as described above.

During the operation of collecting condensable gas by the collector (A1□), the condensable gas collected in the collector (A11) is sent to the collection container (Dl,) and collected therein.

The recovery operation is performed by opening the recovery valve ('v2) and supplying the heat medium from the cooling/heating unit (B1) to the heat transfer surface (all).
is heated to melt or sublimate the coagulated solids, that is, coagulable substances collected in the collector (A1,) and flow into the collection container (Dl,) on the low pressure side.
), the collected material is collected by means such as cooling again to condense and solidify, and the collected material in the collector (A, □) is discharged to prepare for the next collection. When discharging and collecting the condensable substances, in the cooling/heating unit, the gas discharged from the compressor (C1) (usually Freon gas is used, and is compressed high temperature heat transfer gas) is passed through the condenser (#2). After adjusting the temperature with steam or cooling water, it is used as a heating medium at a desired temperature, and the heating medium is supplied to the heating medium supply valve α5).
through the heat transfer surface (α1□) in the collector (A1,) VC
After being supplied and heated, it is passed through the circulation piping to the compressor (C1
) is in operation (during this period, the refrigerant generation system is switched to non-operation).

As mentioned above, for the generator (No.) [at least two cooling/heating collectors with cooling/heating units (A, .),
(A, □) Since the sets are connected in parallel, when one of the collectors is collecting condensable gas, the other collector is discharging and collecting the collected condensable substances. By switching the operation of both collectors (A11) a ("1□), it is possible to prepare for the next collection mode, as well as to perform further inspections, parts replacement, etc., and to secure pre-cooling time for the heat transfer surface. Condensable gas can be continuously collected from the generator (generator section) and discharged into a collection container or the like for collection.

As mentioned above, the cooling and heating unit of the present invention 0□1).

(B1□) is the collector (A11) e (A1□
) and have the above-mentioned configuration, sufficient cooling and heating functions are ensured for the heat transfer surfaces (-, 1) and (-, 2), and the refrigeration capacity is less than 3 tons. In addition, it is possible to carry out repairs and inspections at any time during condensable gas collection operation, and to conduct tests and inspections at regular intervals. By establishing and becoming familiar with daily repair and inspection procedures,
In addition, by carrying out repair inspections from time to time, the above-mentioned test and inspection can be completed in a short time. The generator section) can be expected to operate without interruption for a long period of time.

(Other Embodiments of the Invention) FIG. 3 shows a second embodiment of the present invention, in which the first and second gas generation ports (N2□) of the generator (N2) are different from the first embodiment. , (N2□) includes a set of cooling/heating collectors (A2□) with a cooling/heating unit 0□1) having the same configuration as the first embodiment, and a set of cooling/heating type collectors (A2□) with the same cooling/heating unit (B2). □) is connected to the cooling/heating type collector (A2□) set, and a third gas generation port (N2.
), a cooling/heating type collector (A2.) with a cooling/heating unit (B2.) having the same configuration as the first embodiment.
．． ) is connected as a standby system, and by always pre-cooling the standby system to standby for collection, it can be switched at any time in the event of a failure, increasing reliability. can be further improved.

Furthermore, FIG. 4 shows a third embodiment of the present invention, which is applicable to the case where the generator (Nn) has one gas generation port and a large amount of condensable gas is generated. A set of cooling/heating type collectors (A, 1) with a number of cooling/heating units (Bi12) having the same configuration as the first embodiment, cooling/heating Cooling/heating type collector (ArLt) set with unit (BrLt), cooling/heating type collector (22) with cooling/heating unit (Bm,)
~1) set, cooling/heating type collector (A4) with cooling/heating unit (Screw), and even cooling/heating type collector (A4) with cooling/heating unit (E, 1) as a backup system A, 1) set, and a cooling/heating type collector (A,,) set with a cooling/heating unit) (Bl,) are connected in parallel to the gas generation port of the generator (Nρ) through a receiving valve. The feature of the third embodiment is that a large amount of condensable gas generated from the generator (NrL) is connected to the plurality of collectors (A,
)...(Ant) group and a plurality of said collectors (A □)・
...(Am,) group (t indicates the number) allows collection by multiple collector groups at the same time and enables switching, as well as multiple backup system collectors (A11)...(
The number of collectors in each collector group is set corresponding to the condensable gas generation lid, and continuous operation is possible without interfering with the production of ρ of the generator. In addition, inspection, repair, and periodic inspection can be carried out at any time, and malfunctions can be adequately dealt with.The condensable gas collection, discharge and recovery performance has been further improved, and reliability has been significantly improved.

Furthermore, FIG. 5, FIG. 6, and FIG. 7 show the cooling/heating type collector (A,) and the collector (A,
The figure shows a specific example of the arrangement of the cooling/heating type collector (A) connected to the cooling/heating unit (A
1) cooling/heating unit) (B,) in a side arrangement (see Fig. 5), an upper arrangement (see Fig. 6), and an upper arrangement arranged in the frame (see Fig. 7). It can be done.

The cooling/heating unit in the above embodiment includes a condenser (-1), a refrigerant supply valve (■3), and an expansion valve (v4) on the discharge side of the compressor (C1), as shown in FIG.
) and a heating medium generation system having a condenser (-2) and a heating medium supply valve (v5) are connected in parallel, and the discharge side pipe line of both systems is common. There are two pipes connected to the collector, and they are connected to each collector, so the structure is extremely simple and compact despite having a refrigerant and heat medium supply mechanism. It can be formed and arranged as described above.

(Effects of the Invention) As described above, in the present invention, each of the plurality of cooling/heating type collectors connected to the condensable gas generator has a
Since the configuration includes a cooling/heating unit having a refrigerant generation system and a heat medium generation system connected to a compressor, condensable gas is collected by some of the plurality of collectors, and the The condensable substances collected from other collectors can be discharged and collected during collection, and repair inspections, periodic inspections, and even pre-cooling operations can be performed, without having to stop the operation of the generator due to switching of the operations. The generated condensable gas can be continuously collected, discharged and recovered, and has excellent collection, discharge and recovery performance, and reliability has been significantly improved.

Further, the number of the collectors with cooling/heating units can be increased or decreased in accordance with the amount of condensable gas generated in the generator, and a part of the collectors can be used as a standby system. Therefore, it not only improves the performance of collecting coagulable substances, discharging and collecting them, and improves reliability, but also contributes to improving the operating rate of the generator and has the versatility to be compatible with the scale of the generator.

Furthermore, although the cooling/heating unit has the above-mentioned configuration and is provided for each collector, and has sufficient refrigerant and heat medium supply capacity, the structure is extremely large. It has the advantages of being simplified and significantly more compact, allowing for inspection and repair at any time, increasing reliability, and requiring only a short period of time for periodic inspections, as well as ease of operation, installation, and removal. Has characteristics.

Although the present invention has been described above with reference to embodiments, it goes without saying that the present invention is not limited to such embodiments, and that various design modifications can be made without departing from the spirit of the present invention. .

[Brief explanation of drawings]

Fig. 1 is a mechanical diagram of a condensable substance collection device showing the M1 embodiment of the present invention, Fig. 2 is a detailed mechanical diagram of the cooling/heating unit of Fig. 1, and Fig. 3 is a second embodiment of the present invention. Mechanism diagram showing an example,
Fig. 4 is a mechanism diagram showing the third embodiment of the present invention, Fig. 5, M
6 and 7 are concrete examples of the arrangement of cooling/heating units for a cooling/heating type collector, and FIG. 8 is a mechanism diagram showing a conventional example. N1. N2. N.: Generator, A111Al. 1A2
11A22#A2:II'nx 1AnL a'yn,
e'mi lAA! 1 eAli” cooling/heating type collector, Bt 11Bl □zB2□5B2z+B25pB
nx *Bni sRmlm"mi eBolmBli
: Cooling/heating unit, C□: Compressor, g 1r
V a , V 4: Refrigerant generation system, '21v5' heating medium generation system Sub-agents: 2 patent attorneys and non-Kaimoto important academics

Claims (1)

[Claims] Each of the plurality of cooling/heating collectors connected to the condensable gas generator is provided with a cooling/heating unit having a refrigerant generation system and a heat medium generation system connected to a compressor. A collection device for coagulable substances.