JPH09303302A - Temporary fluid reservoir, and temporary fluid storage equipment using it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a temporary fluid reservoir which is capable of following the pressure change in a relatively extensive pressure range, which can be manufactured at low cost with a simple structure, and which is excellent in durability, and provide a temporary fluid storage equipment using the reservoir. SOLUTION: A temporary fluid reservoir comprises a housing 3 which has a first port 1 to be communicated with the target fluid to be handled and a second port 2 to be communicated with the atmosphere, and formed in a sealed manner, and a bladder 5 formed of a filter whose mouth part 4 is communicated with one of the ports 1, 2. In a temporary fluid storage equipment, the bladder 5 of the temporary fluid storage device is provided in a communicated manner with the second port 2, a flow passage 7 to flow the target fluid to be handled is communicated 6 with the first port 1, and a forward flow device 8 and a rear flow device 9 are provided before and behind the communication part 6 in the flow passage 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temporary reservoir for a fluid used for buffering pressure in a conduit through which a gas or a liquid flows and a temporary reservoir for a fluid using the same.

[0002]

2. Description of the Related Art Conventionally, a temporary fluid storage device used as described above is generally formed as shown in FIGS. In the figure, 61 is a flow passage, 62 is a front circulation device such as a discharge blower, and 63 is a rear circulation device such as a suction block. Reference numeral 64 is a temporary reservoir, and a bladder 66 is provided in the housing 65 thereof. 67 is a communication cylinder, and has a large number of through holes 69 in its side wall 68. Reference numeral 70 is a guide bar, 71 is a guide ring provided on the bladder 66, 72 is an air communicating portion, and 73 is an air blower. Further, 74 is a check valve.

Normally, the front circulation device 62 and the rear circulation device 63
The target fluid to be handled is circulated from the front to the rear with almost the same output. When the front flow device 62 temporarily discharges a flow rate that exceeds the capacity of the rear flow device 63, the bladder 66 expands as shown. Thereafter, the front flow unit 62 is stopped, the check valve 74 is closed, the rear flow unit 63 is continuously operated, and as shown in FIG.
Is designed to contract.

[0004]

However, the conventional fluid temporary storage device described above has the following drawbacks. That is, when this is used for temporarily storing the gas (including mist) of the organic solvent, the bladder 66 is dissolved in the solvent, so that the application of the solvent gas is limited. To avoid this, a bladder 66 having a Teflon coating on the base cloth is used, but the bladder 66 is inevitably expensive. Moreover, deterioration due to repeated expansion and contraction easily occurs, and durability is low. Bladder 66
Since the thickness of the bladder 66 becomes thicker, the expansion and contraction of the bladder 66 can be made smoother, and the structure of the bladder 66 is inevitably complicated.

Further, it is difficult to guarantee the functional safety, and it is troublesome to maintain the airtightness when the bladder 66 is sewn. The present invention has been made to solve the above-mentioned problems, and an object thereof is to first provide a temporary fluid reservoir that can respond to a pressure change in a relatively wide range, and a simple reservoir. An object is to provide a temporary fluid reservoir having a structure that can be manufactured at a relatively low cost and has excellent durability, and to provide a fluid temporary reservoir using the fluid temporary reservoir. The other purpose is almost not limited to application when used for gas of organic solvent, deterioration due to repeated expansion and contraction hardly occurs, and the structure is relatively simple, and functional safety. SUMMARY OF THE INVENTION It is an object of the present invention to provide a temporary storage device for a fluid that can be easily maintained.

[0006]

With regard to the present invention for achieving the above object, a fluid temporary reservoir will be described first by referring to a first communication port 1 communicating with a target fluid to be handled and a second communication chamber communicating with the atmosphere. A housing 3 having a mouth 2 and formed in a closed shape; housed in the housing 3,
A temporary reservoir for fluid, comprising a bladder 5 formed of a filter material, which is provided with the mouth portion 4 communicating with either one of the both passage openings 1 and 2.

The bladder 5 is a temporary reservoir for the fluid, which is made of woven cloth. The bladder 5 is a temporary storage device for the fluid, which is made of synthetic fiber woven cloth. The bladder 5 is a temporary reservoir of the fluid, which is made of nylon woven fabric. Next, a temporary fluid storage device using the above temporary fluid storage device will be described. It is a housing 3 having a first passage 1 for letting in and out an intended handling fluid and a second passage 2 for communicating with the atmosphere; A bladder 5 which is housed in the housing 3 and which is provided by communicating the mouth 4 with the second passage 2 and is formed of a filter material; the middle of the flow direction communicates with the first passage 1 6 A flow passage 7 for handling fluid intended to be provided in the front; a front circulation device 8 and a rear circulation device, which are provided on both sides of the flow passage 7 in the flow direction, and which flow the intended handling fluid in a predetermined direction. A device for temporarily storing fluid, which comprises a device 9; The bladder 5 is a temporary storage device for the fluid, which is made of a woven cloth. The bladder 5 is a temporary storage device for the fluid, which is made of synthetic fiber woven cloth. The bladder 5 is a temporary storage device for the fluid, which is formed of a nylon woven fabric. or,
The fluid flow passage 7 is a temporary storage device for the fluid, which has a check valve 10 between the front flow device 8 and the housing 3. Further, the housing 3 is a temporary storage device for the fluid, which is formed in a porous 11 between the housing 3 and the bladder 5 and has a casing 12 for housing the bladder 5. In addition, the bladder 5 is provided with a communication cylinder 15 inside thereof, which is airtightly communicated with the second opening 2 of the housing 3 and is airtightly communicated with the bladder 5 and has a large number of through holes 14 formed in the side wall 13. It is a temporary storage device for the stored fluid. The housing 3 is a temporary storage device for the fluid, which has a drain passage 16.
Further, the fluid to be handled is a temporary storage device for the fluid, which is a gas of an organic solvent.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION In FIG. 1, 3 is a temporary reservoir 2.
The first housing is made of metal and is formed into a closed container. Further, the housing 3 is formed with a first communication port 1 communicating with a target fluid and a second communication port 2 communicating with the atmosphere. Reference numeral 5 denotes a bladder, which is accommodated in the housing 3 and is provided with one of the both openings 1 and 2 communicating with the opening 4 thereof as shown in FIGS. 1 and 3. It is a bladder made of filter material.

The bladder 5 is characterized in that it is a filter material, and woven cloth, non-woven cloth, synthetic resin sheet having micropores, rubber sheet, elastomer sheet, etc. are arbitrarily used. However, a woven fabric is used as an example, and a synthetic fiber woven fabric is used as an example. A nylon synthetic fiber woven fabric is used as an example. Further, in the embodiment shown in FIG. 1, the bladder 5 is provided in the housing 3 with the mouth portion 4 thereof being in air-tight communication with the second passage 2. In the figure, reference numeral 7 is a flow passage for a target fluid to be handled, which is formed in a tubular shape and has a discharge flow blower, a front flow device 8 such as a discharge pump, and a rear part of a suction blower, a suction pump, etc. on both sides in the length direction. A distribution device 9 is provided. In this case, the front distribution device 8 is a discharge blower provided in communication with the electronic component cleaning device 22 as shown in FIG. 4, and the rear distribution device 9 is a suction blower.

In the case of water supply, for example, the rear circulation device 9 may be a simple valve, and in the present invention, it also includes them. The middle of the flow passage 7 is provided so as to communicate 6 with the housing 3 of the temporary reservoir 21. Next, a check valve 10 is provided between the front flow device 8 and the housing 3. The check valve 10 prevents the fluid temporarily stored in the housing 3 from flowing backward from the housing 3 to the front of the housing 3 as described later.

Next, 12 is a metal casing,
It is provided inside the housing 3 and inside the housing 3 with a space. And the casing 1
2 is, for example, formed of punching metal,
It has a porous portion 11. The bladder 5 is provided in the casing 12 as shown. Reference numeral 15 is a communication tube, which is provided to communicate with the second communication port 2 of the housing 3 in an airtight manner and penetrates the inside and outside of the housing 3. Reference numeral 13 is a side wall, and 14 is a through hole formed in the side wall 13. Reference numeral 16 is a drain passage, and 17 is a valve.
Further, 19 is an air communicating portion, and 20 is an air blower.

Next, the operation of the temporary reservoir 21 and the fluid temporary storage device provided in communication with the temporary reservoir 21 will be described. First, when the bladder 5 of the temporary fluid reservoir 21 is provided in the second through-hole 2 as shown in FIG. 1, the fluid to be handled, which is normally intended, flows in the direction of the rear circulation device 9. In this case, the bladder 5 is inflated as shown in FIG. 1 by the suction force provided by the rear circulation device 9.

Next, when the pressure of the fluid supplied from the front flow unit 8 becomes higher than the normal pressure for some reason, the pressure reaches the temporary reservoir 21 for the fluid and causes the bladder 5 to contract. In this case, since the bladder 5 is breathable, the fluid slightly enters the bladder 5 and flows out from the second communication port 2 to the outside. However, this outflow is negligible and not a significant amount. Moreover, the bladder 5 is contracted, and when the bladder 5 is a filter material, a woven cloth, a synthetic fiber woven cloth, or a nylon woven cloth, the micropores such as the texture are contracted as it shrinks. Changes to the closing direction, so that the outflow amount of the outflow becomes smaller.

In this way, the rise of the pressure can be buffered. When the increase in the pressure stops, the check valve 10 is closed and the rear flow device 9 is continuously operated to operate the housing 3
The fluid inside is aspirated and released. Then bladder 5
Restores and expands as shown in FIG. Regarding the temporary reservoir 21 for the fluid, the bladder 5 may be provided directly or indirectly on the first opening 1 as shown in FIG. In such a case, the bladder 5 operates like the above-mentioned conventional device and is inflated by the handling fluid, but unlike the above-mentioned conventional device, the bladder 5 is breathable and is a filter material, so that it is slightly different. The fluid flows out of the bladder 5,
It flows out from the second passage 2. However, in that case, the bladder 5 is not an airtight type as in the past and is breathable, so there is no risk of damage due to pressure. Therefore, it can also be used in a relatively wide pressure range.

In FIG. 5, 23 is a pressure adjustment check valve,
24 is a filter. The effects of each part of this apparatus will be described. The bladder 5 made of nylon woven fabric can be used for gas recovery of almost all organic solvents because nylon is less susceptible to organic solvents. It is also water repellent and has good dryability. Also, insert the bladder 5 into the mouth 4.
The one provided in communication with the second communication port 2 adheres to the outside of the bladder 5 when there is a mist or the like, and therefore can be removed more easily than when it enters the inside. This removal causes the woven fabric to open when the bladder 5 is inflated,
Since a small amount of air passes from the inside to the outside of the bladder, the drying can be accelerated.
Therefore, it can be recovered as a gas. Further, since the surface area of the bladder 5 becomes large, it is possible to perform good drying.

If the bladder 5 is a woven fabric, particularly a synthetic fiber woven fabric or a nylon woven fabric, the bladder has a large strength against the pressure of fluid and a long-life bladder can be obtained. Further, since the bladder 5 provided in the second passage 2 is contracted when the pressure in the housing 3 is increased, the bladder 5 is
Has air permeability, but its air permeability is reduced with contraction, so that it is possible to effectively temporarily store fluid. Further, since the bladder 5 is made of a filter material and has air permeability, there is no fear of damage when an excessive pressure is applied. Further, since the casing 12 is provided, the mist can be condensed to flow down. Also, excessive expansion of the bladder 5 can be controlled. Further, since the drain passage 16 is provided, the condensed mist or the like can be collected. Further, in the case where the bladder 5 is provided in the second communication port 2, the contact area of the bladder 5 with respect to the stored gas amount becomes small when the handling gas is a large amount of mist, so the mist condenses on the casing 12 and the housing 3, Condensation in the bladder 66, unlike the conventional one, which makes it difficult to take out can be improved, and collection can be facilitated. Bladder 5 made of nylon woven fabric
Can be formed at a lower cost than the conventional teflon-coated bladder, and does not suffer from airtightness during manufacturing.

[0017]

The present invention is constructed as described above. According to the invention of claim 1, since the bladder 5 is made of a filter material, the bladder 5 has breathability and therefore is damaged by an excessive temporary pressure. Can reduce the fear of. The invention of claim 2 can provide a bladder which is inexpensive and has a high strength against pressure. Further, it is possible to provide a bladder having a good drying property. Furthermore, the invention of claim 3 can provide a bladder having high mechanical strength and high durability. The invention of claim 4 can provide a bladder that is not affected by most organic solvent gases and is water repellent and easy to dry. According to the invention of claim 5, since the surface area becomes small when the pressure of the handled fluid increases, the adhesion of mist and the like is reduced, and therefore the amount attached to other parts is increased, so that a storage device that can be easily recovered can be provided. . Further, when the bladder 5 expands, the bladder tends to open, so that it is possible to provide a temporary storage device for a fluid having good drying property. In addition, the invention of claim 6 can provide a temporary storage device having the bladder 5 having high strength against pressure. Further, the invention of claim 7 can provide a temporary storage device having the bladder 5 which is highly durable and inexpensive. In addition, the invention of claim 8 provides a bladder that can withstand most organic solvents, is cheaper than Teflon coating sheet, has higher mechanical strength, is durable against repeated expansion and contraction, and has breathability. It is possible to provide a temporary storage device for the fluid that the user has. Claim 9
The invention can facilitate the collection or release of gas within the bladder housing. The invention of claim 10 can suppress the excessive expansion of the bladder. Further, the mist can be condensed to flow down. The invention of claim 11 is the expansion of the bladder,
The contraction can be smoothly performed. The invention of claim 12 can collect dew condensation such as mist. According to the invention of claim 13, the gas of the organic solvent is not expensive as in the conventional Teflon coating bladder, is inexpensive, has little deterioration due to expansion and contraction, has a long durability, and has a problem of maintaining airtightness during sewing. It is possible to provide a temporary storage device for a gas of an organic solvent having a bladder that is not stored.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of the present invention in a use state of a temporary fluid storage device.

FIG. 2 is a diagram showing a state of the apparatus shown in FIG. 1 different from that in FIG.

FIG. 3 is a view corresponding to FIG. 1, showing another embodiment of the present invention.

FIG. 4 is a view corresponding to FIG. 1 and showing still another embodiment of the present invention.

FIG. 5 is a view showing still another embodiment of the present invention and schematically showing a temporary fluid storage device.

FIG. 6 is a diagram showing an operating state of a conventional temporary fluid storage device.

FIG. 7 is a diagram showing a state of the apparatus shown in FIG. 6 different from that in FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 1st through-hole 2 2nd through-hole 3 Housing 4 Portion 5 Bladder 6 Communication part 7 Flow path 8 Front distribution device 9 Rear distribution device 10 Check valve 11 Porous part 12 Casing 13 Side wall 14 Through hole 15 Communication cylinder 16 Drain passage

Claims (13)

[Claims] 1. A housing 3 having a first communication port 1 communicating with a target fluid to be handled and a second communication port 2 communicating with the atmosphere and having a hermetically-sealed shape; housed in the housing 3. A temporary reservoir for fluid, comprising: a bladder 5 formed of a filter material, which is provided by communicating the mouth portion 4 with either one of the both passage openings 1, 2. 2. The temporary fluid reservoir according to claim 1, wherein the bladder 5 is formed of a woven cloth. 3. The fluid temporary reservoir according to claim 1, wherein the bladder 5 is made of a synthetic fiber woven fabric. 4. The fluid temporary reservoir according to claim 1, wherein the bladder 5 is formed of a nylon woven fabric. 5. A housing 3 having a first passage 1 for letting in and out a desired handling fluid and a second passage 2 for communicating with the atmosphere; a housing 3 housed in the housing 3 and opened at the second passage 2. A bladder 5 made of a filter material provided so as to connect the parts 4 to each other; a flow passage 7 for a target fluid to be handled, which is provided so as to communicate 6 with the first communication port 1 in the middle of the flow direction;
A temporary fluid storage device comprising: a front flow device 8 and a rear flow device 9 which are provided on both sides of the flow passage 7 in the flow direction, and which flow the target handling fluid in a predetermined direction. 6. The temporary fluid storage device according to claim 5, wherein the bladder 5 is formed of a woven cloth. 7. The temporary fluid storage device according to claim 5, wherein the bladder 5 is made of a synthetic fiber woven fabric. 8. The temporary fluid storage device according to claim 5, wherein the bladder 5 is formed of a nylon woven fabric. 9. The fluid flow passage (7) has a check valve (10) between the front flow unit (8) and the housing (3).
A fluid temporary storage device according to 6, 7, 8 or 9. 10. The temporary storage of fluid according to claim 5, 6, 7, 8 or 9, wherein the housing 3 is formed in a porous 11 between the housing 3 and the bladder 5, and has a casing 12 for housing the bladder 5. apparatus. 11. The bladder 5 has a housing 3 inside thereof.
Is provided in airtight communication with the second opening 2 of the bladder 5 and
The fluid temporary storage device according to claim 5, 6, 7, 8, 9, or 10, which accommodates a communication cylinder 15 that is air-tightly communicated with the side wall 13 and has a large number of through holes 14 formed in the side wall 13. 12. The temporary fluid storage device according to claim 5, 6, 7, 8, 9, or 10, wherein the housing 3 has a drain passage 16. 13. The temporary storage device for fluid according to claim 5, 6, 7, 8, 9, 10, 11 or 12, wherein the intended handling fluid is a gas of an organic solvent.