JP2016191408A - Valve and fluid recovery method using valve - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a valve capable of being easily mounted on a mounting object composed of a ferromagnetic material to which magnet is attracted.SOLUTION: A valve 10 includes a main body portion 14 having a fluid passage 12 between a tip end and a rear end, a rotatable ball valve element 16 disposed in the fluid passage 12 and having a through hole 16a, a handle 20 rotating the ball valve element 16 through a stem 18, and a magnet body 32 mounted on an outer peripheral face of a tip of the main body portion 14, and having a tip face 32a disposed on the same plane as a tip face 24a of the main body portion 14.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a main body portion in which a fluid passage for passing a fluid such as liquid or gas is formed, a valve having a valve body for opening and closing the fluid passage, and a fluid recovery method using the valve, and more particularly, a magnet. The present invention relates to a valve that can be easily attached to an attachment object that is made of a ferromagnetic material to which is attached, and a fluid recovery method that uses the valve.

Conventionally, absorption refrigerators have been used as air conditioning equipment for large buildings such as offices and hospitals.
As shown in FIG. 11, the absorption refrigerator 70 includes four containers, an absorber 72, a regenerator 74, a condenser 76, and an evaporator 78, pure water as a refrigerant, and a lithium bromide solution 80 as an absorption liquid. This is a system that repeatedly evaporates, absorbs, regenerates and condenses water, and makes cold water using the heat of vaporization of water.

The absorber 72 is filled with a lithium bromide solution 80 that easily absorbs water, and the water vapor 82 evaporated in the evaporator 78 is absorbed by the lithium bromide solution 80 in the absorber 72. The inside of the evaporator 78 is kept in a vacuum.
The lithium bromide solution 80 that has absorbed and absorbed the water vapor 82 is fed into the regenerator 74 and then heated to evaporate the water and return it to the concentrated lithium bromide solution 80, and then again into the absorber 72. Returned.
On the other hand, the evaporated water vapor 82 is sent into the condenser 76, cooled by the cooling water 84 of the cooling tower 83, and returned to the water 86. Note that the water vapor 82 and the water 86 contain a small amount of lithium bromide.
After the water 86 in the condenser 76 is sent into the evaporator 78, it evaporates and takes the heat of vaporization, thereby cooling the cooling water 90 circulating through the air conditioner (indoor unit) 88 and the condenser 76. It is used for cooling. Since the inside of the evaporator 78 is in a vacuum state, the water 86 in the evaporator 78 is boiled and evaporated at 5 ° C.

  By the way, the lithium bromide used in the above absorption refrigerator 70 has strong corrosiveness and causes chemical burns when it adheres to the human body, and it may contain harmful substance hexavalent chromium. When the absorption refrigerator 70 is discarded, it is necessary to appropriately recover and process the lithium bromide solution 80 as industrial waste.

The conventional method for treating the lithium bromide solution 80 is to connect a plurality of hoses 92 connected to an existing valve (not shown) provided in advance in the absorber 72, the condenser 76, etc., to the collective header 94, A vacuum pump 98 is disposed between the collective header 94 and the transfer filling container 97 via a recovery hose 96, and the vacuum pump 98 sucks the lithium bromide solution 80 and water 86 and collects them in the transfer filling container 97. It was.
Although not shown in the drawings, a method of making a hole in the bottom of a container such as an absorber or a condenser and allowing the lithium bromide solution to spontaneously fall into the “receiving container” and recovering it, or an absorber or a condenser A method of recovering the lithium bromide solution into the transfer and filling container through the above-mentioned hose, collecting header, recovery hose and vacuum pump after making a hole in the bottom of the container and welding and connecting a new valve. there were.

In the case of the recovery method of the lithium bromide solution using the existing valve described above, since there is usually only one existing valve for each container, it takes time to collect and stays at a location away from the location where the existing valve is installed. There was a problem that it was difficult to recover the lithium bromide solution.
Also, in the method of making a hole in the bottom of the container and letting the lithium bromide solution drop naturally in the “receiving container” and recovering it, it takes time to recover because the pump is not used, and the bromide that has dropped naturally. There was a problem that the lithium solution was scattered.
Furthermore, in the method of collecting a new valve by welding connection after making a hole in the bottom of the container, it is necessary to weld and connect the valve, which causes problems such as work time and labor. It was.

  This invention has been devised by paying attention to the above-mentioned conventional problems and the fact that containers such as absorbers and regenerators constituting an absorption refrigerator are made of a ferromagnetic material with a magnet attached thereto. The purpose is to realize a valve that can be easily attached to an attachment object made of a ferromagnetic material to which a magnet is attached.

  In addition, another object of the present invention is to use a valve that can be easily attached to an attachment object made of a ferromagnetic material to which a magnet is attached. An object is to realize a fluid recovery method that can be easily recovered.

In order to achieve the above object, a valve according to claim 1 of the present invention provides:
It comprises a main body part in which a fluid passage is formed between a front end and a rear end, a valve body that opens and closes the fluid passage, and a magnet body attached to the main body part.

The valve according to claim 2 is the valve according to claim 1,
The magnet body is mounted on the outer peripheral surface of the front end of the main body, and the front end surface of the magnet body and the front end surface of the main body are arranged on the same plane.

A fluid recovery method using the valve according to claim 3 is a fluid recovery method using the valve according to claim 1,
Forming a through hole in a container made of a ferromagnetic material with a magnet containing a fluid;
A step of magnetizing the magnet body of the valve to the container in a state where the through hole of the container and the fluid passage of the valve body portion are in communication with each other;
And a step of sucking the fluid in the container through a hose connected to the fluid passage of the valve main body.

A fluid recovery method using the valve according to claim 4 is a fluid recovery method using the valve according to claim 2,
Forming a through hole in a container made of a ferromagnetic material with a magnet containing a fluid;
Magnetically attaching the magnet body to the container in a state where the through hole of the container and the fluid passage of the valve main body portion are arranged to overlap each other;
And a step of sucking the fluid in the container through a hose connected to the fluid passage of the valve main body.

  In the valve according to claim 1 of the present invention, since the magnet body is mounted on the main body portion in which the fluid passage is formed, the magnet body is magnetically attached to an attachment object made of a ferromagnetic material to which the magnet is attached. By doing so, the valve can be easily mounted.

  Further, as in the valve according to claim 2, in the valve according to claim 1, the magnet body is mounted on the outer peripheral surface of the front end of the main body, and the front end surface of the magnet body and the front end of the main body are included. When the surface is arranged on the same plane, in a state where the through hole formed in the attachment object made of a ferromagnetic material with a magnet and the fluid passage of the valve main body overlap, If the magnet body is magnetically attached to the object to be attached, the through hole of the object to be attached and the fluid passage of the valve body can be easily communicated.

  In the fluid recovery method according to claim 3, wherein the valve according to claim 1 is used, a through-hole of a container made of a ferromagnetic material with a magnet containing fluid and a fluid passage in the valve main body portion, In a state in which the valve is magnetized, the valve magnet body is magnetically attached to the container, so that the valve can be easily attached to the container containing the fluid, and then connected to the fluid passage of the valve main body. The fluid can be collected by sucking the fluid in the container through the hose.

  5. The fluid recovery method according to claim 4, wherein the valve according to claim 2 is used, and a through-hole of a container made of a ferromagnetic material with a magnet containing a fluid and a fluid passage in the valve main body. In such a state that the valve magnet body is magnetically attached to the container, the through-hole of the container and the fluid passage of the valve main body can be easily communicated with each other. The fluid can be recovered by sucking the fluid in the container through a hose connected to the fluid passage of the part.

  1 to 8 show a valve 10 according to the present invention. FIG. 1 is a perspective view, FIG. 2 is a front view, FIG. 3 is a plan view, FIG. 4 is a right side view, and FIG. 6 is a schematic cross-sectional view showing an internal structure in a state in which the valve 10 is opened, FIG. 7 is a perspective view in a state in which the valve 10 is closed, and FIG. 8 is a schematic cross-sectional view showing an internal structure in a state in which the valve 10 is closed. .

  As shown in FIGS. 1 to 8, the valve 10 according to the present invention has a general ball valve structure, and includes a main body portion 14 having a fluid passage 12 through which a fluid such as liquid or gas is formed, A ball valve body 16 disposed in the fluid passage 12 to open and close the fluid passage 12, a stem 18 that engages with the ball valve body 16 and rotates integrally with the ball valve body 16, and the stem 18 and has a handle 20 that rotates together with the stem 18.

  The main body 14 is connected to one end of the cylindrical base 22 through a nut 26 and a first cylindrical pipe 24 on the front end side, and to the other end of the cylindrical base 22 on the rear end side. The two cylindrical pipes 28 are connected via a nut 26, and the internal space of the first cylindrical pipe 24, the internal space of the cylindrical base 22 and the internal space of the second cylindrical pipe 28 communicate with each other. Thus, the fluid passage 12 is formed between the front end and the rear end of the main body portion 14.

A ball valve body 16 having a through-hole 16a is disposed in the fluid passage 12 of the cylindrical base body 22 of the main body 14, and a cylindrical groove is formed in a concave groove (not shown) at the top of the ball valve body 16. A protrusion 18a at the lower end of the stem 18 inserted through the upper end opening of the base 22 is engaged (FIGS. 6 and 8). A nut 30 is attached to a threaded portion 18b at the upper end of the stem 18 in a state where a hole (not shown) at the tip of the handle 20 is inserted.
As a result, the handle 20 is attached to the main body 14 so as to be rotatable integrally with the stem 18, and when the stem 18 is rotated by operating the handle 20, it engages with the protrusion 18a at the lower end of the stem 18. The ball valve body 16 is also rotated.

Thus, the state in which the longitudinal direction of the handle 20 is arranged in parallel with the fluid passage 12 of the main body 14 (see FIGS. 1 and 6) is the open state of the fluid passage 12, and in this open state, the ball valve The through hole 16 a of the body 16 is in communication with the fluid passage 12.
On the other hand, the state in which the handle 20 is rotated 90 degrees and the longitudinal direction of the handle 20 is arranged orthogonally to the fluid passage 12 of the main body 14 (see FIGS. 7 and 8) is a closed state of the fluid passage 12. In the closed state, the through hole 16a of the ball valve body 16 is not in communication with the fluid passage 12.

A magnet body 32 is mounted on the main body portion 14 of the valve 10 for mounting on a mounting object made of a ferromagnetic material to which a magnet is attached.
The magnet body 32 is formed in a disk shape having a circular hole (not shown) in the center, and the first cylindrical pipe 24 constituting the distal end side of the main body portion 14 is inserted into the circular hole of the magnet body 32. Thus, the magnet body 32 is mounted on the outer peripheral surface of the front end of the main body portion 14, and the front end surface 32a of the magnet body 32 and the front end surface 24a of the main body portion 14 are arranged on the same plane.

  In the above, the ball valve is exemplified as the valve 10 according to the present invention, but the present invention is not limited to this, and a fluid passage formed between the front end and the rear end of the main body portion, Any valve having a valve body that opens and closes the fluid passage may be used.

  Further, in the above, the disc-shaped magnet body 32 is mounted on the outer peripheral surface of the front end of the main body portion 14, and the front end surface 32a of the magnet body 32 and the front end surface 24a of the main body portion 14 are arranged on the same plane. However, the present invention is not limited to this, and the shape and mounting position of the magnet body can be appropriately changed according to the shape of the object to be attached.

  In the valve 10 according to the present invention, since the magnet body 32 is attached to the main body 14, the magnet body 32 is magnetically attached to an attachment object made of a ferromagnetic material with a magnet attached. The valve 10 can be easily mounted.

  Moreover, since the magnet body 32 is mounted on the outer peripheral surface of the front end of the main body portion 14, the front end surface 32a of the magnet body 32 and the front end surface 24a of the main body portion 14 are arranged on the same plane. If the magnet body 32 is magnetically attached to the mounting object in a state where the through hole formed in the mounting object made of a ferromagnetic material to which the magnet is attached and the fluid passage 12 of the valve body part 14 are overlapped, The through hole of the attachment object and the fluid passage 12 of the valve main body part 14 can be easily communicated.

  Hereinafter, a method of recovering the lithium bromide solution 80 from the absorption refrigerator 70 using the valve 10 of the present invention will be described based on FIGS. 9 and 10. In addition, the same code | symbol is attached | subjected to the member same as the member demonstrated in the said background art and FIG. 11, and the description is abbreviate | omitted.

  As described above, the lithium bromide solution 80 is stored in the absorber 72 and the regenerator 74 that constitute the absorption refrigerator 70. Further, although water 86 is stored in the condenser 76 and the evaporator 78, since the trace amount of lithium bromide is contained in the water 86 and is a thin lithium bromide solution, the condenser 76 and the evaporator 76 are evaporated. The water 86 in the vessel 78 also needs to be recovered.

  First, an absorber 72, a regenerator 74, a condenser 76, an evaporator 78 constituting the absorption refrigeration machine 70, and appropriate portions of piping connecting the four containers, for example, an evaporator 78 as shown in FIG. A through hole 34 is formed on the bottom surface of the substrate. Since the absorber 72, the regenerator 74, the condenser 76, the evaporator 78, and the piping connecting the four containers are maintained in a negative pressure state in the absorption refrigerator 70, the through-hole 34 is formed. Even if formed, the internal lithium bromide solution 80 and water 86 do not leak.

After the through hole 34 is formed, the magnet body 32 is magnetically attached to the bottom surface of the evaporator 78 in a state where the through hole 34 and the fluid passage 12 of the valve main body 14 overlap with each other as shown in FIG. Let
Then, after connecting the hose 36 connected to the rear end of the valve main body 14 and the fluid passage 12 of the main body 14 to the collective header 94, the fluid passage 12 of the valve main body 14 is opened, and the vacuum The pump 98 sucks the lithium bromide solution 80 and the water 86 and collects them in the transfer filling container 97.

  Since the valve body 10 according to the present invention is provided with the magnet body 32 in the main body 14, a container (an absorber 72, a regenerator 74, a condenser 76, an evaporator 78) in which a lithium bromide solution 80 or water 86 is stored. The valve 10 can be easily attached by magnetizing the magnet body 32 to the container in a state where the through-hole 34) and the fluid passage 12 of the valve body 14 are in communication with each other.

  Moreover, since the magnet body 32 is mounted on the outer peripheral surface of the front end of the main body portion 14, the front end surface 32a of the magnet body 32 and the front end surface 24a of the main body portion 14 are arranged on the same plane. The through hole 34 of the container (the absorber 72, the regenerator 74, the condenser 76, and the evaporator 78) containing the lithium bromide solution 80 and the water 86 and the fluid passage 12 of the valve body 14 are arranged to overlap each other. In this state, the magnet body 32 is magnetically attached to the container, so that the through-hole 34 of the container and the fluid passage 12 of the valve body 14 can be easily communicated.

The valve 10 of the present invention is used not only for the above-described lithium bromide solution 80 and water 86 but also for recovering various fluids such as various liquids and gases stored in a container made of a ferromagnetic material with a magnet. can do.
In this case, if it is necessary to prevent fluid leakage when the through hole is formed in the container, the inside of the container may be evacuated with a pump or the like to be in a negative pressure state.

It is a perspective view which shows the valve | bulb which concerns on this invention. It is a front view which shows the valve | bulb which concerns on this invention. It is a top view which shows the valve | bulb which concerns on this invention. It is a right view which shows the valve | bulb which concerns on this invention. It is a left view which shows the valve | bulb which concerns on this invention. It is a schematic sectional drawing which shows the internal structure of the state which open | released the valve | bulb which concerns on this invention. It is a perspective view of the state where the valve concerning the present invention was obstructed. It is a schematic sectional drawing which shows the internal structure of the state which obstruct | occluded the valve | bulb which concerns on this invention. It is typical explanatory drawing which shows the method of collect | recovering lithium bromide solutions from an absorption refrigerator using the valve | bulb which concerns on this invention. It is explanatory drawing which shows the case where the valve | bulb which concerns on this invention is attached to the bottom face of an absorber. It is typical explanatory drawing which shows the method of collect | recovering lithium bromide solutions from an absorption refrigerator using the conventional existing valve | bulb.

10 Valve
12 Fluid passage
14 Body
16 ball disc
16a Through hole
18 stem
18a protrusion
18b Screw part
20 Handle
22 Cylindrical substrate
24 First cylindrical pipe
24a Tip surface
26 Nut
28 Second cylindrical pipe
30 nuts
32 Magnet body
32a Tip surface
34 Through hole
36 hose
70 Absorption refrigerator
72 Absorber
74 Regenerator
76 Condenser
78 Evaporator
80 Lithium bromide solution
82 water vapor
83 Cooling tower
84 Cooling water
86 water
88 Air conditioner (indoor unit)
90 Cooling water
92 hose
94 Set header
96 Recovery hose
97 Transfer filling container
98 vacuum pump

Claims (4)

  A valve comprising: a main body portion in which a fluid passage is formed between a front end and a rear end; a valve body that opens and closes the fluid passage; and a magnet body attached to the main body portion.   2. The magnet body is mounted on the outer peripheral surface of the front end of the main body portion, and the front end surface of the magnet body and the front end surface of the main body portion are arranged on the same plane. The valve described. A fluid recovery method using the valve according to claim 1,
Forming a through hole in a container made of a ferromagnetic material with a magnet containing a fluid;
A step of magnetizing the magnet body of the valve to the container in a state where the through hole of the container and the fluid passage of the valve body portion are in communication with each other;
A fluid recovery method using a valve, comprising a step of sucking the fluid in the container through a hose connected to the fluid passage of the valve body. A fluid recovery method using the valve according to claim 2,
Forming a through hole in a container made of a ferromagnetic material with a magnet containing a fluid;
Magnetically attaching the magnet body to the container in a state where the through hole of the container and the fluid passage of the valve main body portion are arranged to overlap each other;
A fluid recovery method using a valve, comprising a step of sucking the fluid in the container through a hose connected to the fluid passage of the valve body.

Images