CN208296320U - A kind of expansion tank - Google Patents
A kind of expansion tank Download PDFInfo
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- CN208296320U CN208296320U CN201820705970.5U CN201820705970U CN208296320U CN 208296320 U CN208296320 U CN 208296320U CN 201820705970 U CN201820705970 U CN 201820705970U CN 208296320 U CN208296320 U CN 208296320U
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- expansion tank
- cavity
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- cabinet
- pressure
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Abstract
The utility model provides a kind of expansion tank, belongs to field of mechanical technique.It is more inconvenient that it solves the problems, such as that existing expansion tank is used by manual type inflation.A kind of this expansion tank, it is the cabinet of cavity including middle part, the elastic diaphragm that the cavity of cabinet is separated into air cavity and water cavity is equipped in cabinet, cabinet is equipped with the inflating port being connected with air cavity and the water inlet being connected with water cavity, this expansion tank further includes air compressor machine, pressure sensor and controller, the gas outlet of air compressor machine is connected with inflating port, and pressure sensor can incude the air pressure in air cavity and send a signal to controller, and controller controls air compressor machine work.A kind of this expansion tank has the advantages that being capable of automatic inflating and using more convenient.
Description
Technical field
The utility model belongs to field of mechanical technique, is related to a kind of water tank, especially a kind of expansion tank.
Background technique
The expansion tank of water heater mainly plays a part of to balance pressure, therefore it is required that this water tank has certain leakproofness
Energy and compressive property, it is permanent in addition should also to ensure that the discharge pressure in water tank is substantially at a comparison in water heater use process
In fixed range.Expansion tank used at present mainly has overflow-type expansion tank and clip fastening-type expansion tank, wherein
Overflow-type expansion tank need to install overflow pipe, spill box etc., and spill box need to be installed to certain altitude, installation dimension
Shield is all inconvenient.
A kind of clip fastening-type expansion tank as disclosed in Chinese patent literature is as described in ZL99241138.6, due to air pressure
Side cover plate with hydraulic pressure side cover plate is fastened using independent clip, and clip forced area is smaller, and air pressure side cover plate and hydraulic pressure
It just will form two gaps after side cover plate and diaphragm of rubber combination, increase the unstability of sealing, in addition using after of long duration
With the deformation of cabinet, in fact it could happen that clip loose phenomenon.
A kind of for another example expansion tank (application number: 20,052,007,734 1.5), by air pressure side cover disclosed in Chinese patent literature
Plate and hydraulic pressure side cover plate connect into a closed cabinet, there is the rubber that cabinets cavity can be divided into two parts in cabinet
Inflating port is arranged on air pressure side cover plate in diaphragm, and water inlet is arranged on hydraulic pressure side cover plate, in air pressure side cover plate and hydraulic pressure side cover
The U-shaped connecting band in the interconnecting piece setting cross section of plate, the one side edge of the connecting band is directly by the edge shape of hydraulic pressure side cover plate
At another side edge is pressed on the edge of air pressure side cover plate, and the edge of diaphragm of rubber is clipped in the edge and water of air pressure side cover plate
Between the edge for pressing side cover plate.It is general by artificial but when the expansion tank pours compressed gas by inflating port in cabinet
Mode, therefore its use is more inconvenient.
Summary of the invention
The purpose of this utility model is the presence of the above problem in view of the prior art, propose one kind can automatic inflating with
And use conveniently expansion tank.
The purpose of this utility model can be realized by the following technical scheme: a kind of expansion tank, including middle part is cavity
Cabinet, the elastic diaphragm that the cavity of cabinet is separated into air cavity and water cavity is equipped in the cabinet, on the cabinet
Equipped with the inflating port being connected with air cavity and the water inlet being connected with water cavity, which is characterized in that this expansion tank further includes
Air compressor machine, pressure sensor and controller, the gas outlet of the air compressor machine are connected with the inflating port, the pressure
Force snesor can incude the air pressure in the air cavity and send a signal to controller, and the controller controls air compressor machine work
Make.
The water inlet of this expansion tank is linked into water heater outlet pipeline system, and the sky of certain pressure is filled in air cavity
Gas.When heat exchanger absorbs heat when work, water temperature height, when water volume expands, the pressure in water cavity is greater than the pressure in air cavity, water
Pressure pushes elastic diaphragm to squeeze air cavity, and pressure is transferred in air cavity；When water temperature, which reduces pressure, is restored to normal value, air cavity
Air pressure pushes elastic diaphragm that the water in water cavity is drained into outlet pipeline system, so that the balance of pressure transfer is realized, to out
Water piping system plays the effect of buffer protection.After air cavity generates gas leakage, pressure sensor senses that the pressure in air cavity is small
When setting value, controller is sent a signal to, controller controls air compressor machine and inflates to air cavity, realizes the purpose of automatic inflating, has
Have the advantages that using more convenient.
In a kind of above-mentioned expansion tank, valve inside is provided at the inflating port.By the way that valve inside is arranged, play
The effect of one-way non-return, is inflated it convenient for air compressor machine.
In a kind of above-mentioned expansion tank, the pressure sensor is located in air cavity.Pressure sensor is located at air cavity
It is interior, it can directly incude the pressure in air cavity, when the pressure in air cavity is less than setting value, controller control air compressor machine works past
Air cavity is filled with air, has the advantages that reliable operation, structure are simply convenient for control.
In a kind of above-mentioned expansion tank, this expansion tank includes time control switch, the time control switch
It is connected with controller, the pressure sensor can incude the pressure at gas outlet.Time control switch is sent out in setting time
For signal to controller, controller controls air compressor machine starting out, inflate air compressor machine to air cavity, goes out in air cavity with air compressor machine at this time
Port is connected, and the pressure at pressure sensor induction gas outlet is the pressure in air cavity, when pressure sensor detects gas
When intracavitary pressure is less than setup pressure value, pressure sensor sends a signal to controller, and controller controls air compressor machine work, directly
When the pressure sensed to pressure sensor is equal to setting value, controller control air compressor machine stops working, and having can be automatic right
Air cavity pressurization, and the more reliable advantage that works.
In a kind of above-mentioned expansion tank, the cabinet includes upper cover and lower cover, the side of the elastic diaphragm
The two sidewalls on edge are born against in the upper cover and lower lid, the edge of the upper cover be flange and by the elasticity every
The edge of film is extruded on lower lid.Using above-mentioned setting, there is preferable connection effect to elastic diaphragm, and make elastic diaphragm with
Cabinet forms preferable sealing effect, avoids generating leakage.
In a kind of above-mentioned expansion tank, the elastic diaphragm is made of rubber material.
In a kind of above-mentioned expansion tank, the outer end of the water inlet is toward upwarping 3 ゜ to 12 ゜ on the outside of cabinet.Using
Above-mentioned setting is connected convenient for water inlet with outlet pipeline system, has the advantages that structure is simple and connection is more convenient.
In a kind of above-mentioned expansion tank, the outer end of the inflating port is toward upwarping 10 ゜ to 20 ゜ on the outside of cabinet.It adopts
With above-mentioned setting, it is connected convenient for inflating port air compressor machine, has the advantages that structure is simple and connection is more convenient.
Compared with prior art, a kind of this expansion tank has the advantage that
1, after air cavity generates gas leakage, when pressure sensor senses that the pressure in air cavity is less than setting value, signal is issued
To controller, controller controls air compressor machine and inflates to air cavity, realizes the purpose of automatic inflating, has use conveniently excellent
Point；
2, pressure sensor is located in air cavity, can directly incude the pressure in air cavity, sets when the pressure in air cavity is less than
When definite value, controller control air compressor machine, which works, is filled with air toward air cavity, is simply convenient for the excellent of control with reliable operation, structure
Point；
3, the edge of upper cover is flange and the edge of the elastic diaphragm is extruded on lower lid, is had to elastic diaphragm
Preferable connection effect, and elastic diaphragm and cabinet is made to form preferable sealing effect, it avoids generating leakage；
4, time control switch sends a signal to controller in setting time, and controller controls air compressor machine starting, and pressure passes
Sensor incudes the pressure in air cavity and sends a signal to controller, and controller controls air compressor machine work, until pressure sensor sense
When the pressure that should be arrived is equal to setting value, controller control air compressor machine stops working, and having automatically to be pressurized air cavity, and works
More reliable advantage.
Detailed description of the invention
Fig. 1 is a kind of this expansion tank structural schematic diagram.
Fig. 2 is the C partial enlargement diagram of Fig. 1.
Fig. 3 is a kind of this control electric diagram of expansion tank embodiment one.
Fig. 4 is a kind of this control electric diagram of expansion tank embodiment two.
In figure, 1, cabinet 1；2, air cavity 2；2a, inflating port 2a；2b, water cavity 2b；2c, water inlet 2c；3, elastic diaphragm 3；4,
Valve inside 4；5, upper cover 5；6, lower cover 6；7, air compressor machine.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
Embodiment one
As shown in Figures 1 to 3, a kind of expansion tank is the cabinet 1 of cavity including middle part, is equipped in cabinet 1 by cabinet 1
Cavity is separated into air cavity 2 and water cavity 2b and using elastic diaphragm 3 made of rubber material, and cabinet 1 includes upper cover 5 and lower cover
6, the two sidewalls at the edge of elastic diaphragm 3 are born against in upper cover 5 and lower cover 6, and the edge of upper cover 5 is flange and will be described
The edge of elastic diaphragm 3 is extruded on lower cover 6, has preferable connection effect to elastic diaphragm 3, and make elastic diaphragm 3 and case
Body 1 forms preferable sealing effect, avoids generating leakage.
Cabinet 1 is equipped with the inflating port 2a being connected with the air cavity 2 and water inlet 2c being connected with water cavity 2b, inflating port
It is provided with valve inside 4 at 2a, plays the effect of one-way non-return, it is inflated convenient for air compressor machine 7.The outer end of water inlet 2c is past
The outside of cabinet 1 upwarp angle A be 3 ゜ to 12 ゜, be connected convenient for water inlet 2c with outlet pipeline system, have structure simply and
Connect more convenient advantage.
It is 10 ゜ to 20 ゜ that the outside of the outer end of inflating port 2a toward cabinet 1, which upwarps angle B, is convenient for 7 phase of inflating port 2a air compressor machine
Even, have the advantages that structure is simple and connection is more convenient.
This expansion tank further includes air compressor machine 7, pressure sensor and controller, the gas outlet of air compressor machine 7 and inflating port
2a is connected, and pressure sensor is located in air cavity 2, and pressure sensor can incude the air pressure in air cavity 2 and send a signal to control
Device processed, controller control solenoid valve make air compressor machine 7 work.
The water inlet 2c of this expansion tank is linked into water heater outlet pipeline system, is filled with certain pressure in air cavity 2
Air.When heat exchanger absorbs heat when work, water temperature height, when water volume expands, the pressure in water cavity 2b is greater than in air cavity 2
Pressure, water pressure pushing elastic diaphragm 3 squeeze air cavity 2, pressure are transferred in air cavity 2；It is restored to normally when water temperature reduces pressure
When value, the air pressure of air cavity 2 pushes elastic diaphragm 3 that the water in water cavity 2b is drained into outlet pipeline system, to realize pressure
The balance of transfer plays the effect of buffer protection to outlet pipeline system.After air cavity 2 generates gas leakage, pressure sensor induction
When being less than setting value to the pressure in air cavity 2, controller is sent a signal to, controller control control solenoid valve keeps air compressor machine 7 right
Air cavity 2 is inflated, and realizes the purpose of automatic inflating, is had the advantages that using more convenient.
Embodiment two
The present embodiment is roughly the same with the structure of embodiment one and principle, and different places are: as shown in figure 4, this one kind
Expansion tank includes time control switch, and time control switch is connected with controller, and pressure sensor can incude at gas outlet
Pressure.Time control switch sends a signal to controller in setting time, and controller control solenoid valve starts air compressor machine 7,
It inflates air compressor machine 7 to air cavity 2, is connected in air cavity 2 with the gas outlet of air compressor machine 7 at this time, pressure sensor incudes gas outlet
The pressure at place is the pressure in air cavity 2, when pressure sensor detects that the pressure in air cavity 2 is less than setup pressure value, pressure
Force snesor sends a signal to controller, and controller control solenoid valve makes air compressor machine 7 work, senses until pressure sensor
When pressure is equal to setting value, controller control air compressor machine 7 stops working, and having automatically to be pressurized air cavity 2, and works more
Reliable advantage.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Although cabinet 1, air cavity 2, inflating port 2a, water cavity 2b, water inlet 2c, elastic diaphragm 3, gas is used more herein
The terms such as door core 4, upper cover 5, lower cover 6, but it does not exclude the possibility of using other terms.The use of these items is only for
It is more convenient to describe and explain the essence of the utility model；It is practical with this for being construed as any additional limitation all
What novel spirit was disagreed.
Claims (8)
1. a kind of expansion tank is the cabinet of cavity including middle part, is equipped in the cabinet cavity of cabinet being separated into gas
The elastic diaphragm of chamber and water cavity, the cabinet be equipped with the inflating port that is connected with air cavity and be connected with water cavity into
The mouth of a river, which is characterized in that this expansion tank further includes air compressor machine (7), pressure sensor and controller, the air compressor machine
(7) gas outlet is connected with the inflating port, and the pressure sensor can incude the air pressure in the air cavity simultaneously
Send a signal to controller, controller control air compressor machine (7) work.
2. a kind of expansion tank according to claim 1, which is characterized in that the pressure sensor is located in air cavity.
3. a kind of expansion tank according to claim 1, which is characterized in that this expansion tank includes time control switch,
The time control switch is connected with controller, and the pressure sensor can incude at the gas outlet of air compressor machine (7)
Pressure.
4. a kind of expansion tank according to claim 1 or 2 or 3, which is characterized in that the cabinet include upper cover and
Lower cover, the two sidewalls at the edge of the elastic diaphragm are born against in the upper cover and lower lid, the side of the upper cover
Edge is flange and the edge of the elastic diaphragm is extruded on lower lid.
5. a kind of expansion tank according to claim 1 or 2 or 3, which is characterized in that be provided with gas at the inflating port
Men Xin.
6. a kind of expansion tank according to claim 1 or 2 or 3, which is characterized in that the elastic diaphragm uses rubber
Material is made.
7. a kind of expansion tank according to claim 1 or 2 or 3, which is characterized in that the outer end of the water inlet is toward case
3 ゜ are upwarped on the outside of body to 12 ゜.
8. a kind of expansion tank according to claim 1 or 2 or 3, which is characterized in that the outer end of the inflating port is toward case
10 ゜ are upwarped on the outside of body to 20 ゜.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820705970.5U CN208296320U (en) | 2018-05-11 | 2018-05-11 | A kind of expansion tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820705970.5U CN208296320U (en) | 2018-05-11 | 2018-05-11 | A kind of expansion tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208296320U true CN208296320U (en) | 2018-12-28 |
Family
ID=64726978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820705970.5U Active CN208296320U (en) | 2018-05-11 | 2018-05-11 | A kind of expansion tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208296320U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111121132A (en) * | 2018-10-30 | 2020-05-08 | 宁波方太厨具有限公司 | Automatic inflation structure of expansion water tank and control method thereof |
-
2018
- 2018-05-11 CN CN201820705970.5U patent/CN208296320U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111121132A (en) * | 2018-10-30 | 2020-05-08 | 宁波方太厨具有限公司 | Automatic inflation structure of expansion water tank and control method thereof |
| CN111121132B (en) * | 2018-10-30 | 2021-10-01 | 宁波方太厨具有限公司 | Automatic inflation structure of expansion water tank and control method thereof |
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