CN217762040U

CN217762040U - Bag type expansion tank

Info

Publication number: CN217762040U
Application number: CN202221859076.6U
Authority: CN
Inventors: 张亚东; 张卫华
Original assignee: Shanghai Anchao Online Control Technology Co ltd
Current assignee: Shanghai Anchao Online Control Technology Co ltd
Priority date: 2022-07-19
Filing date: 2022-07-19
Publication date: 2022-11-08
Anticipated expiration: 2032-07-19

Abstract

The utility model provides a bag type expansion tank, which comprises a tank body, wherein an air cock is installed at the top end of the tank body, a valve inside is arranged in the air cock, a first compression spring positioned inside the air cock is sleeved on the outer side surface of the valve inside, a valve sealing gasket is installed at the bottom end of the valve inside, a core seat positioned inside the air cock and capable of axially moving along the air cock is arranged under the valve sealing gasket, a hexagonal base connected with the inner part of the air cock through threads is arranged under the core seat, and an air passage communicated with an air chamber inside the tank body is formed in the hexagonal base; the utility model discloses following beneficial effect has: the utility model discloses well core print seat, second compression spring and hexagonal base constitute the structure of non return, and the structure of this non return of increase can be than current air cock one deck protection more, and when the air cock damaged, the condition of gas leakage can not appear yet, has reduced the leakage rate of expansion tank pre-filling gas by a wide margin, has effectively guaranteed the life of expansion tank.

Description

Bag type expansion tank

Technical Field

The utility model relates to an expansion tank technical field especially relates to a bag formula expansion tank.

Background

The bag-type expansion tank is an energy storage device consisting of a rubber bag inner container, the water chamber and the air chamber are completely separated, the internal air bag structure ensures that water does not contact with the tank wall, the tank body is free of corrosion, the tank is free of condensation, and compared with a traditional water tank, the expansion tank is more convenient to install, small in occupied space and free of secondary pollution.

The prior bag type expansion tank is shown in the schematic diagram in figures 1 and 2: the water-saving air-conditioning system comprises a tank body a, a rubber ball bag b, a stainless steel flange plate c, a copper nut d, a copper valve core e, a compression spring f, a copper air nozzle g, an air nozzle sealing gasket h, a copper nut j, a tank body sealing gasket k and a stainless steel screw m, wherein the inner cavity of the rubber ball bag b is a water chamber l, an air chamber n is arranged between the rubber ball bag b and the tank body a, when the temperature of water in the system rises and the pressure rises, and when the pressure is greater than the pre-charging pressure value in the tank body, the water in a pipeline expands into the rubber ball bag b, the air sealed in the tank is compressed, the volume of the compressed air is reduced, and the pressure rises; when the pressure in the system is reduced, the compressed gas expands to press the water in the rubber balloon b out of the balloon; the bag-type expansion tank is used for a closed water circulation system, plays the roles of balancing water quantity and pressure, and avoids the frequent start and stop actions of the system, but the existing bag-type expansion tank has the condition that the air faucet is damaged, and the tank body leaks air due to the damage of the air faucet, so that potential safety hazards exist in the pressure maintaining of the system.

SUMMERY OF THE UTILITY MODEL

In view of the above prior art's shortcoming, the utility model aims to provide a bag formula expansion tank for solve among the prior art because the air cock damages and leads to a jar body gas leakage, thereby make the pressurize of system have the problem of potential safety hazard.

For realizing above-mentioned purpose and other relevant purpose, the utility model provides a bag formula expansion tank, which comprises a tank body, the air cock is installed on the top of the jar body, be equipped with the valve inside in the air cock, wherein, the material of air cock and valve inside is copper, the lateral surface cover of valve inside is equipped with and is located the inside first compression spring of air cock, the sealed pad of air cock is installed to the bottom of valve inside, be equipped with under the sealed pad of air cock and be located the inside core print that just can follow air cock axial displacement of air cock, be equipped with under the core print with the hexagonal base of the inside threaded connection of air cock, wherein, the material of core print and hexagonal base is copper, the inside wall of air cock is equipped with first screw thread, the lateral surface of hexagonal base be equipped with first screw thread assorted second screw thread, the air flue that communicates with jar internal portion air chamber is seted up to the hexagonal base, the lateral surface cover of core print and hexagonal base is equipped with second compression spring, the core print compresses tightly forms sealing fit with the air cock is inside through second compression spring.

In an embodiment of the present invention, the outer side surface of the air faucet is provided with a baffle integrated with the air faucet, the top side of the baffle is provided with a sealing gasket through a tank body at the inner wall of the tank body.

In an embodiment of the utility model, the air cock passes through nut detachable and installs the top at the jar body, the top threaded connection of air cock has the nut, wherein, the material of nut and nut is copper, the air cock is located the lateral surface of baffle top is equipped with the third screw thread, the inside wall of nut and nut be equipped with third screw thread assorted fourth screw thread.

In an embodiment of the present invention, the tank body is provided with a rubber balloon, the inner cavity of the rubber balloon is a water chamber, and an air chamber is arranged between the rubber balloon and the inner cavity of the tank body.

In an embodiment of the utility model, the bottom of the jar body is equipped with and is used for installing the ring flange at jar internal portion with the rubber sacculus, the ring flange passes through screw demountable installation in the bottom of the jar body, wherein, the material of ring flange and screw is the stainless steel, the quantity of screw is six, six the screw is followed the ring flange axial is evenly worn to establish in the ring flange.

As mentioned above, the utility model discloses a bag-type expansion tank has following beneficial effect:

the utility model discloses well core print seat, second compression spring and hexagonal base constitute the structure of non return, when the temperature in the system risees, pressure is along with rising, when pressure is greater than the internal pre-charge pressure value of jar, in the water inflation in the pipeline advances the rubber sacculus, sealed air at jar internal is compressed, gaseous volume diminishes after receiving the compression, pressure risees, if this moment air cock damages, the system can not the pressurize, the structure of this non return of increase can have more the one deck protection than current air cock, when the air cock damages, the condition of gas leakage can not appear yet, the leakage rate of expansion tank pre-charge gas has been reduced by a wide margin, not only effectively guaranteed the life of expansion tank, also effectively avoid because pipeline pressure that the leakage of the pre-charge gas leads to in the expansion tank rises and damages equipment, the utility model provides an air cock owing to having adopted the non return structure, not only fine play the effect of balanced water yield and pressure, also ensured that there is not the potential safety hazard in the pressure of system.

Drawings

FIG. 1 is a schematic front sectional view of a prior art bladder-type expansion tank;

FIG. 2 is an enlarged schematic view at p in FIG. 1 of a prior art bag-type expansion tank;

fig. 3 is a schematic front sectional view of the bag-type expansion tank disclosed in the embodiment of the invention.

Fig. 4 is an enlarged schematic view of the bag-type expansion tank disclosed in the embodiment of the invention at the point q in fig. 3.

Description of the element reference numerals

1. A tank body; 2. a rubber balloon; 3. a flange plate; 4. a nut; 5. a valve core; 6. a first compression spring; 7. an air faucet; 8. an air tap sealing gasket; 9. a nut; 10. a tank body sealing gasket; 11. a core print; 12. a second compression spring; 13. a hexagonal base; 14. a screw; 15. a water chamber; 16. an air chamber.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Please refer to fig. 3 to 4. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

Referring to fig. 3 and 4, the utility model provides a bag type expansion tank, which comprises a tank body 1, a rubber balloon 2 is arranged in the tank body 1, a flange 3 for installing the rubber balloon 2 in the tank body 1 is arranged at the bottom end of the tank body 1, the flange 3 is detachably installed at the bottom end of the tank body 1 through a screw 14, wherein the flange 3 and the screw 14 are made of stainless steel, the number of the screw 14 is six, the six screws 14 are uniformly inserted in the flange 3 along the axial direction of the flange 3, the inner cavity of the rubber balloon 2 is a water chamber 15, an air chamber 16 is arranged between the rubber balloon 2 and the inner cavity of the tank body 1, an air faucet 7 is installed at the top end of the tank body 1, a valve core 5 is arranged in the air faucet 7, wherein the air faucet 7 and the valve core 5 are made of copper, a first compression spring 6 positioned in the air faucet 7 is sleeved on the outer side surface of the valve core 5, an air faucet sealing gasket 8 is installed at the bottom end of the valve core 5, and a core seat 11 which is positioned in the air faucet 7 and can move along the axial direction of the air faucet 7 is arranged under the air gasket 8;

a hexagonal base 13 in threaded connection with the inside of the air faucet 7 is arranged right below the core base 11, wherein the core base 11 and the hexagonal base 13 are both made of copper, the inner side wall of the air faucet 7 is provided with first threads, the outer side surface of the hexagonal base 13 is provided with second threads matched with the first threads, the hexagonal base 13 is provided with an air passage communicated with an air chamber 16 inside the tank body 1, the outer side surfaces of the core base 11 and the hexagonal base 13 are sleeved with a second compression spring 12, the core base 11 is tightly pressed by the second compression spring 12 to form sealing fit with the inside of the air faucet 7, the outer side surface of the air faucet 7 is provided with a baffle integrally formed with the air faucet 7, the top side of the baffle is arranged on the inner wall of the tank body 1 through a tank body sealing gasket 10, wherein the air faucet 7 with a non-return structure can be arranged on an expansion tank and can also be arranged on various devices such as a tire, the air faucet 7 is detachably arranged at the top end of the tank body 1 through a nut 9, the top end of the air faucet 7 is in threaded connection with a nut 4, wherein the materials of the nut 9 and the nut 4 are both made of copper, the outer side wall of the air faucet 7 above the baffle is provided with third threads, and the inner side wall of the nut 9 and the nut 4 are provided with fourth threads matched with the fourth threads;

specifically, when the air faucet 7 is installed, firstly, the core seat 11 is placed at the inner side wall of the bottom of the air faucet 7, then the second compression spring 12 is sleeved on the core seat 11, then the hexagonal base 13 is rotated, the hexagonal base 13 is in threaded connection with the inner side wall of the bottom of the air faucet 7, the hexagonal base 13 moves upwards, so that the second compression spring 12 can be extruded, then the second compression spring 12 extrudes the core seat 11, so that the core seat 11 can be installed inside the air faucet 7, then the valve core 5, the first compression spring 6 and the air faucet sealing gasket 8 are sequentially installed inside the air faucet 7, then the air faucet 7 is assembled at the top end of the tank body 1, the tank sealing gasket 10 is installed at the baffle, then the nut 9 is in threaded connection with the air faucet 7, so that the air faucet 7 is installed at the top end of the tank body 1, then the nut 4 is in threaded connection with an order of the air faucet 7, then the rubber balloon 2 is installed in the tank body 1, the flange 3 is assembled at the bottom end of the tank body 1, and six screws 14 are used for installing the flange 3 at the bottom end of the tank body 1;

furthermore, when using the jar body 1, when the temperature in the system risees, pressure is along with rising, when pressure is greater than the pre-charging pressure value in the jar body 1, water inflation in the pipeline is gone into in the rubber sacculus 2, the air of sealing in the jar body 1 is compressed, gaseous volume diminishes after receiving the compression, pressure risees, if the air cock damage this moment, the system can not the pressurize, the structure of this non return of increase can have more one deck protection than current air cock, when the air cock damages, the condition of gas leakage also can not appear, the leakage rate of expansion tank pre-charging gas has been reduced by a wide margin, not only effectively guaranteed the life of expansion tank, also effectively avoid because the pipeline pressure that the leakage of the inflation body leads to in the expansion tank rises and damages equipment.

To sum up, the utility model discloses well core print 11, second compression spring 12 and hexagonal base 13 constitute the structure of non return, when the temperature in the system risees, pressure is along with rising, when pressure is greater than the precharge pressure value in the jar body 1, water inflation in the pipeline advances in the rubber sacculus 2, the air of sealing in jar body 1 is compressed, gaseous volume diminishes after receiving the compression, pressure risees, if the air cock damages this moment, the system can not the pressurize, the structure of this non return that increases can have more one deck protection than current air cock, when the air cock damages, the condition of gas leakage also can not appear, the leakage rate of expansion tank precharge gas has been reduced by a wide margin, not only effectively guaranteed the life of expansion tank, also effectively avoided because the pipeline pressure that the leakage of inflation body leads to in advance in the expansion tank rises and damages the equipment, the expansion tank is owing to adopted the air cock of non return structure, not only fine has played the effect of balanced water yield and pressure, there is not also ensured that there is not the potential safety hazard in the pressure of system. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a bag formula expansion tank, which comprises a tank body, the air cock is installed on the top of the jar body, be equipped with the valve inside in the air cock, the lateral surface cover of valve inside is equipped with and is located the inside first compression spring of air cock, the sealed pad of air cock, its characterized in that are installed to the bottom of valve inside: be equipped with under the sealed pad of air cock and be located inside and can follow air cock axial displacement's core print, be equipped with under the core print with the hexagonal base of the inside threaded connection of air cock, the air flue with jar internal portion air chamber intercommunication is seted up to the hexagonal base, the lateral surface cover of core print and hexagonal base is equipped with second compression spring, the core print compresses tightly through second compression spring and forms sealed cooperation with the air cock is inside.

2. A bladder expansion tank according to claim 1, wherein: the outer side surface of the air faucet is provided with a baffle which is integrally formed with the air faucet, and the top side of the baffle is arranged on the inner wall of the tank body through a tank body sealing gasket.

3. The expansion tank of claim 1, wherein: the air faucet is detachably mounted at the top end of the tank body through a nut, and a nut is connected to the top end of the air faucet in a threaded mode.

4. The expansion tank of claim 1, wherein: the tank is internally provided with a rubber balloon, the inner cavity of the rubber balloon is a water chamber, and an air chamber is arranged between the rubber balloon and the inner cavity of the tank.

5. A bladder expansion tank according to claim 4, wherein: the bottom of the tank body is provided with a flange plate used for installing the rubber balloon in the tank body, and the flange plate is detachably installed at the bottom of the tank body through screws.