Pressure tank with high sealing performance and pressure resistance

Abstract

The utility model provides a pressure tank with high leakproofness and pressure resistance, which comprises a tank body and an upper seal head mounted on the tank body, the tank body is in sealed connection with the upper seal head, a bag is arranged in the tank body, the bag is fixedly mounted on the tank body through a bag hanging device, and the upper seal head is fixedly connected with the upper seal head through the bag hanging device. The bag is in sealing connection through a sealing protection cover; the bag comprises a flange plate, and the flange plate is fixedly installed on the flange of the tank body through bolts. A connecting pipe is arranged in the bag far away from the position of the sealing protection cover, and the running water filtering assembly is mounted on the flange plate in a fixed connection manner. By additionally arranging the bag, direct contact between water and gas is avoided, the situation of uneven pressure distribution in the tank body is avoided, the probability of breakage of the tank body is reduced, and the safety is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressure tanks, and in particular relates to a pressure tank with high sealing and pressure resistance. Background Art

[0002] Pressure tanks are primarily used to regulate water pressure, maintain the stability of the water supply system, ensure smooth water flow, and avoid frequent starts and stops of the water pump. Pressure tanks primarily utilize the compressibility of the air inside the tank to regulate and store water and maintain the required pressure.

[0003] Traditional pressure tanks lack gas isolation devices, allowing direct contact between air and water. The coexistence of air and water can lead to uneven pressure distribution within the tank. This is especially true when the water pump starts and stops, as the compression and expansion of the air can cause significant pressure fluctuations. This can easily lead to ruptures in the pressure tank. Furthermore, direct contact between water and the tank can easily lead to water contamination, posing a safety hazard to users.

[0004] Patent publication number: CN 219550247 U discloses a high-efficiency pressure tank, which belongs to the field of pressure tanks. It solves the problem that the pressure tank has a simple structure and a high temperature during the compression and injection process. The high-efficiency pressure tank includes a pressure tank body, which is composed of an inner tank and an outer tank, and both the inner tank and the outer tank are provided with injection compression tubes for gas compression injection. The utility model has the advantages of good cooling effect, stable operation and long service life. However, in actual application of the above-mentioned pressure tank, the gas is directly injected into the pressure tank through the injection compression tank, so that the air in the pressure tank is in direct contact with the water.

[0005] In view of this, how to solve the defects in the existing technology has become one of the problems to be solved urgently in the field of pressure tank technology. Utility Model Content

[0006] In view of the problems existing in the background technology, the utility model provides, on the one hand, a pressure tank with high sealing and pressure resistance, including a tank body and an upper head installed on the tank body, and the tank body and the upper head are sealed. A bag is provided inside the tank body, and the bag is fixedly installed on the tank body through a hanging bag device, and the bag is sealed through a sealing protective cover; the bag includes a flange, and the flange is fixedly installed on the flange of the tank body by bolts; a connecting pipe is provided in the bag at a position away from the sealing protective cover, and the live water filter assembly is installed on the flange in a fixed connection manner.

[0007] Optionally, the inner wall connection end of the sealing protective cover is threadedly connected to a fastening bolt and fixedly connected by a fastening pin. The end face of the fastening bolt near the fastening pin position is flat, and the end of the fastening bolt away from the fastening pin position extends into the tank body and is threadedly connected by a fastening nut.

[0008] Optionally, a sealing gasket is provided between the fastening nut and the tank body.

[0009] Optionally, the end of the fastening bolt extending into the bag is provided with a sealing member integrally provided therewith, and raised ends uniformly distributed along the circumference of the sealing member abut against the inner wall of the bag.

[0010] Optionally, the thickness L1 of the protruding end portion / the thickness L2 of the sealing member 112 = 1 / 6.

[0011] Optionally, the bladder is made of rubber material, and a liquid wear-resistant agent is sprayed on the outer wall of the bladder to form a protective coating on the outer wall of the bladder.

[0012] Optionally, the live water filtration assembly includes a filter element, a control valve is provided at the inlet end of the connecting pipe, and a detachable connection is adopted between the control valve and the connecting pipe, a filter element is provided on the inlet end of the control valve, and the mounting portion of the filter element is fixedly installed on the inner wall of the flange through a connecting member.

[0013] Optionally, a thread is provided in the end surface of the connecting pipe away from the control valve.

[0014] Optionally, the tank body fixes the support seat to the outer wall of the tank body by means of fixing bolts, and the position is limited by means of self-locking nuts, and a flat washer is provided between the self-locking nuts and the fixing bolts.

[0015] Optionally, an air valve seat is installed on the outer wall of the tank body, and an air charging and discharging valve is provided on the air valve seat and integrated therewith, and the air charging and discharging valve includes an air outlet end, and the air outlet end passes through the tank body and extends into the tank body.

[0016] In summary, the beneficial effects of the present invention are:

[0017] (1) The utility model avoids direct contact between water and gas by adding a bag, avoids uneven pressure distribution in the tank, reduces the probability of tank rupture, and improves safety.

[0018] (2) The utility model adopts a bladder made of rubber material and adds a protective coating on the outer wall of the bladder to improve the pressure resistance, thereby extending the service life of the bladder, improving the reliability of the tank body in long-term use, and reducing the risk of water pollution.

[0019] (3) The present invention ensures that water circulation can be achieved by adding connecting pipes and control valves, and at the same time improves water quality and quality safety by adding live water filtering components for filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a pressure tank with high sealing and pressure resistance according to the utility model;

[0021] Figure 2 For this utility model Figure 1 A magnified view of the structure at position III in the middle;

[0022] Figure 3 For this utility model Figure 1 A magnified view of the structure at position I in the middle;

[0023] Figure 4 For this utility model Figure 1 A magnified view of the structure at position II in the middle;

[0024] Figure 5 For this utility model Figure 1 Middle AA section view.

[0025] Reference numerals:

[0026] 1. Flange; 2. Flange; 3. Bolt; 4. Air filling and discharging valve; 041. Air outlet end; 5. Air valve seat; 6. Bag; 7. Support; 8. Lower head; 9. Tank body; 10. Upper head; 11. Bag hanging device; 111. Fastening nut; 112. Seal; 113. Fastening pin; 114. Fastening bolt; 115. Sealing gasket;

[0027] 12. Sealing protection cover; 13. Fastening bolt; 14. Self-locking nut; 15. Flat washer; 16. Live water filter assembly; 161. Filter element; 162. Control valve; 163. Connecting pipe; 164. Connecting piece; 165. Thread;

[0028] 17. Support seat; 18. Fastening bolts. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions, and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. Although exemplary embodiments are disclosed in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to facilitate a more thorough understanding of the present invention and to fully convey the concept of the present invention to those skilled in the art.

[0030] In the description of this specification, the description with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and features of different embodiments or examples, unless they are contradictory.

[0031] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "plurality" refers to two or more, unless expressly limited otherwise. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean fixed, removable, or integral; "connected" can mean directly or indirectly through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0032] This utility model is mainly used to meet the needs of the domestic drinking water market and export to Germany, and is mainly used in railway systems. Figure 1-5 As shown, this embodiment provides a pressure tank with high sealing and pressure resistance, including a tank body 9 and an upper head 10 installed on the tank body 9, and the tank body 9 and the upper head 10 are sealed.

[0033] Pressure tanks are mainly used to regulate water pressure, maintain the stability of the water supply system, ensure smooth water flow and avoid frequent starting and stopping of water pumps. Pressure tanks mainly use the compressibility of the air in the tank to regulate and store water volume and maintain the required pressure. Traditional pressure tanks lack gas isolation equipment, and the air and water in the pressure tank are in direct contact. The coexistence of water and air makes it easy for the pressure in the tank to be unevenly distributed, especially when the water pump starts and stops, the compression and expansion of the air will cause huge pressure fluctuations. This can easily lead to the rupture of the pressure tank, and the direct contact of water with the tank body can easily lead to water pollution, posing a safety hazard to users. In order to solve the above technical problems, please refer to Figure 1-5 As shown, a bag 6 is provided inside the tank body 9 , and the bag 6 is fixedly mounted on the tank body 9 via a bag hanging device 11 , and the bag 6 is sealed and connected via a sealing protective cover 12 .

[0034] The inner wall connection end of the sealing protective cover 12 is threadedly connected to the fastening bolt 114 and is fixedly connected by a fastening pin 113. The end face of the fastening bolt 114 near the fastening pin 113 is flat, and the end of the fastening bolt 114 away from the fastening pin 113 extends into the bag 6 and is threadedly connected by a fastening nut 111.

[0035] Furthermore, a sealing gasket 115 is provided between the fastening nut 111 and the tank body 9 .

[0036] Furthermore, the end of the fastening bolt 114 extending into the bladder 6 is provided with an integral seal 112. Protruding ends evenly distributed along the circumference of the seal 112 contact the inner wall of the bladder 6, and the thickness of the protruding ends L1 / the thickness of the seal 112 L2 = 1 / 6. When the thickness of the protruding ends L1 / the thickness of the seal 112 L2 = 1 / 6, the top of the protruding ends better contact the inner wall of the bladder, and the addition of the seal 112 further improves the sealing performance.

[0037] In this embodiment, the utility model adds a bag 6 to avoid direct contact between water and gas, avoid uneven pressure distribution in the tank, reduce the probability of tank rupture, and improve safety.

[0038] Furthermore, the bladder 6 is made of rubber material, and a liquid wear-resistant agent is sprayed on the outer wall of the bladder 6 to form a protective coating on the outer wall of the bladder 6 .

[0039] In this embodiment, by using a bladder made of rubber material and adding a protective coating on the outer wall of the bladder, the service life of the bladder is extended, and at the same time the reliability of the tank body in long-term use is improved, and the risk of water pollution is reduced.

[0040] Furthermore, a lower sealing head 8 sealedly connected to the can body 9 is provided on one end of the can body 9 away from the sealing protection cover 12, and the capsule 6 passes through the sealing head 8 and extends out.

[0041] In actual application, the existing pressure tank water lacks water circulation and renewal capabilities, which easily forms a "dead water zone" and causes water quality to deteriorate. In order to solve the above technical problems, please refer to Figure 3 As shown, the bag 6 extending out of the head 8 is fixed by a flange 1 , and the flange 1 is fixedly mounted on the flange 2 of the tank body 9 by bolts 3 .

[0042] Furthermore, the bag 6 away from the sealing protection cover 12 is provided with a connecting pipe 163, and the

[0043] The live water filter assembly 16 is mounted on the flange 1 by means of a fixed connection such as fastening screws.

[0044] Furthermore, the live water filter assembly 16 includes a filter element 161, a control valve 162 is provided at the inlet end of the connecting pipe 163 (near the capsule), and the control valve 162 and the connecting pipe 163 are detachably connected. The filter element 161 is provided at the inlet end of the control valve 162, and the mounting portion of the filter element 161 is fixedly mounted on the inner wall of the flange 1 via a connector 164, thereby achieving the connection between the filter element 161 and the flange 1.

[0045] The filter element 161 is preferably a ZFC100-06B series filter.

[0046] Furthermore, a thread 165 is provided in the end surface of the connecting pipe 163 at a position away from the control valve 162 , thereby facilitating threaded connection to an external system through the thread 165 .

[0047] In this embodiment, while ensuring that water circulation can be achieved, a live water filter assembly 16 is added for filtration, thereby improving water quality and quality safety, ensuring that there is no dead water in the bag, reducing the growth of microorganisms, and lowering the probability of secondary pollution.

[0048] Furthermore, the tank body 9 fixes the support seat 17 to the outer wall of the tank body 9 through the tightening bolts 13, and the position is limited by the self-locking nut 14. In order to improve the tightness, a flat washer 15 is provided between the self-locking nut 14 and the tightening bolt 13.

[0049] Furthermore, an air valve seat 5 is fixedly installed on the outer wall of the tank body 9, and an air charging and discharging valve 4 is provided on the air valve seat 5 and integrated therewith, and the air charging and discharging valve 4 includes an air outlet end 041, and the air outlet end 041 passes through the tank body 9 and extends into the tank body.

[0050] When in use, the external compressed gas system is connected through the charging and discharging valve 4, the gas is flushed into the interior of the tank through the compressed gas system, and then the external water supply pipe group is connected through the connecting pipe.

[0051] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to be limiting. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art will appreciate that modifications or equivalent substitutions to the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention and are intended to be encompassed by the claims of the present invention.

Claims

1. A pressure tank with high sealing and pressure resistance, characterized in that: It includes a tank body and an upper head installed on the tank body, and the tank body and the upper head are sealed. A bag is provided inside the tank body, and the bag is fixedly installed on the tank body through a bag hanging device, and the bag is sealed through a sealing protective cover; the bag includes a flange, and the flange is fixedly installed on the flange of the tank body by bolts; a connecting pipe is provided in the bag at a position away from the sealing protective cover, and the live water filter assembly is installed on the flange in a fixed connection manner.

2. A pressure tank with high sealing and pressure resistance according to claim 1, characterized in that: The inner wall connection end of the sealing protection cover is threadedly connected to the fastening bolt and fixedly connected by a fastening pin. The end face of the fastening bolt close to the fastening pin is set flat, and the end of the fastening bolt away from the fastening pin extends into the tank body and is threadedly connected by a fastening nut.

3. A pressure tank with high sealing performance and pressure resistance according to claim 2, characterized in that: A sealing gasket is provided between the fastening nut and the tank body.

4. A pressure tank with high sealing performance and pressure resistance according to claim 3, characterized in that: The end of the fastening bolt extending into the bag is provided with a sealing member integrally provided therewith, and the raised ends uniformly distributed along the circumference of the sealing member are in conflict with the inner wall of the bag.

5. A pressure tank with high sealing performance and pressure resistance according to claim 4, characterized in that: The thickness L1 of the protruding end portion / the thickness L2 of the sealing member (112)=1 / 6.

6. The pressure tank with high sealing performance and pressure resistance according to claim 1, characterized in that: The bladder is made of rubber material, and the outer wall of the bladder is sprayed with a liquid wear-resistant agent, thereby forming a protective coating on the outer wall of the bladder.

7. The pressure tank with high sealing performance and pressure resistance according to claim 1, characterized in that: The live water filter assembly includes a filter element, a control valve is provided at the inlet end of the connecting pipe, and the control valve and the connecting pipe are detachably connected, a filter element is provided on the inlet end of the control valve, and the mounting portion of the filter element is fixedly mounted on the inner wall of the flange through a connecting member.

8. The pressure tank with high sealing performance and pressure resistance according to claim 7, characterized in that: A thread is provided in the end surface of the connecting pipe at a position far away from the control valve.

9. The pressure tank with high sealing performance and pressure resistance according to claim 1, characterized in that: The tank body is fixedly mounted on the outer wall of the tank body by a fixing bolt, and the position is limited by a self-locking nut. A flat washer is provided between the self-locking nut and the fixing bolt.

10. The pressure tank with high sealing performance and pressure resistance according to claim 1, characterized in that: An air valve seat is installed on the outer wall of the tank body, and an air charging and discharging valve is provided on the air valve seat and integrated therewith. The air charging and discharging valve includes an air outlet end portion, and the air outlet end portion passes through the tank body and extends into the tank body.

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