Visualizing a diaphragm swell tank

Abstract

The utility model discloses a kind of visual diaphragm expansion tanks, including expansion tank body, the top of expansion tank body is fixedly installed with air inlet pipe, the bottom of expansion tank body is movably installed with water inlet pipe, the outer end of expansion tank body is fixedly installed with observation window;By setting heating assembly, expansion tank body surface can be heated, effectively prevent freezing of water in tank under low temperature environment, ensure that expansion tank still can normally operate in cold region or low temperature working condition, heating jacket is wrapped in the outside of expansion tank body, the heating element in its inside can evenly release heat, heat is efficiently transferred to expansion tank body by heat conduction plate, so that the temperature in tank is maintained in suitable range, the setting of observation window is convenient for operator to observe the working condition of heating jacket and the situation of expansion tank body surface in real time, abnormality that may appear is conveniently discovered and handled, the safety and reliability of equipment operation are improved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical technology, specifically to a visual diaphragm expansion tank. Background Technology

[0002] A diaphragm expansion tank is a closed energy storage device. Inside, a diaphragm completely isolates the water chamber from the gas chamber (usually pre-filled with nitrogen). Its core function is to balance and stabilize the pressure and water volume fluctuations in the water system. Diaphragm expansion tanks can reduce the frequency of water pump start-ups and shutdowns, reduce energy consumption, improve heat exchange efficiency by stabilizing pressure, and shorten commissioning time.

[0003] Chinese patent CN205975813U proposes a diaphragm expansion tank, which solves the problems of easy corrosion and poor airtightness of existing diaphragm expansion tanks. The tank includes a tank body with a diaphragm that divides the inner cavity of the tank body into two sealed cavities. The upper end of the tank body has an air inlet end that communicates with the inner cavity of the tank body, and the lower end of the tank body has a water inlet. A water inlet pipe is fixedly connected to the water inlet. A water-proof sleeve is provided on the inner side wall of the lower end of the tank body. The water inlet pipe passes through the water-proof sleeve and communicates with the cavity at the lower end of the tank body. The diaphragm expansion tank has the advantages of being less prone to corrosion and having better airtightness.

[0004] In cold regions or under low-temperature conditions, the water inside expansion tanks may freeze. This not only affects the normal operation of the expansion tank but may even cause the tank to rupture, leading to system failure and economic losses. In addition, traditional diaphragm expansion tanks do not allow for direct observation of the working status of the internal diaphragm or the actual condition of the water and gas chambers. When problems such as aging, damage, or pre-charge gas leakage occur in the diaphragm, they are difficult to detect in time. Often, maintenance can only be carried out when obvious abnormalities appear in the system, which undoubtedly increases the blindness and cost of maintenance. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a visual diaphragm expansion tank, which effectively prevents the water inside the tank from freezing in low-temperature environments and ensures that the expansion tank can still operate normally in cold regions or low-temperature conditions.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a visual diaphragm expansion tank, comprising an expansion tank body, an air inlet pipe fixedly installed on the top of the expansion tank body, a water inlet pipe movably installed on the bottom of the expansion tank body, an observation window fixedly installed on the outer end of the expansion tank body, a heating component provided on the outer end of the expansion tank body, a disassembly and assembly component provided on the bottom of the expansion tank body, and a replacement component provided on the top of the disassembly and assembly component;

[0007] Preferably, the heating assembly includes a heating jacket, which is fixedly installed on the outer end of the expansion tank body. Multiple heating tubes are fixedly installed inside the heating jacket, and a heat-conducting plate is fixedly installed on the inner wall of the heating jacket.

[0008] Preferably, the disassembly and assembly assembly includes a connecting plate, which is fixedly installed at the bottom of the expansion tank body. An mounting plate is movably connected to the bottom of the connecting plate, and a fixing bolt passes through the inner wall of the mounting plate.

[0009] Preferably, a sealing tube is fixedly installed on the top of the mounting plate, a sealing ring is fixedly installed on the outer end of the sealing tube, and a sealing groove is provided on the bottom of the connecting plate.

[0010] Preferably, the replacement component includes a threaded groove formed at the top of the inlet pipe, a threaded cylinder threaded to the outer end of the threaded groove, a diaphragm body fixedly installed at the top of the threaded cylinder, and a sealing gasket fixedly installed at the bottom of the threaded cylinder.

[0011] Preferably, the heat-conducting plate is in contact with the outer end of the expansion tank body, and the observation window is located at the opening of the heating jacket.

[0012] Preferably, the sealing tube extends into the interior of the sealing groove, and the mounting plate is located at the outer end of the water inlet pipe.

[0013] Preferably, the diaphragm body is located inside the expansion tank body, and the sealing gasket is located between the threaded groove and the threaded cylinder.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This solution, by setting up a heating component, can heat the surface of the expansion tank body, effectively preventing the water inside the tank from freezing in low-temperature environments. This ensures that the expansion tank can still operate normally in cold regions or low-temperature conditions. The heating jacket wraps around the outside of the expansion tank body, and the heating elements inside can evenly release heat. The heat is efficiently transferred to the expansion tank body through the heat conduction plate, keeping the temperature inside the tank within a suitable range. The observation window allows operators to observe the working status of the heating jacket and the condition of the expansion tank body surface in real time, facilitating the timely detection and handling of any possible abnormalities, thus improving the safety and reliability of equipment operation.

[0016] 2. This solution provides an efficient and convenient way to replace the diaphragm body by setting up replacement components, effectively reducing maintenance costs and downtime. The threaded groove at the top of the inlet pipe forms a threaded connection with the threaded cylinder, allowing the threaded cylinder with the diaphragm body fixed to it to be easily screwed into or out of the inlet pipe. The operation is simple and labor-saving. The sealing gasket fixed at the bottom of the threaded cylinder is located between the threaded groove and the threaded cylinder. After the threaded connection is tightened, the sealing gasket is squeezed and deformed, which can tightly fill the thread gap and form a reliable seal, preventing water in the tank from leaking through the threaded connection. This ensures the sealing performance of the expansion tank and ensures its normal pressure bearing and safe operation under various working conditions. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a partial schematic diagram of the front cross-section of the structure of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the heating component of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the replacement component of this utility model;

[0021] Figure 5 This is a three-dimensional structural diagram of the disassembly and assembly components of this utility model.

[0022] In the diagram: 1. Expansion tank body; 2. Air inlet pipe; 3. Water inlet pipe; 4. Observation window; 51. Heating jacket; 52. Heating tube; 53. Heat conduction plate; 61. Connecting plate; 62. Mounting plate; 63. Fixing bolt; 64. Sealing tube; 65. Sealing ring; 66. Sealing groove; 71. Threaded groove; 72. Threaded cylinder; 73. Diaphragm body; 74. Sealing gasket. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1 , Figure 2 and Figure 3This utility model provides a technical solution: a visual diaphragm expansion tank, including an expansion tank body 1, an air inlet pipe 2 fixedly installed on the top of the expansion tank body 1, a water inlet pipe 3 movably installed on the bottom of the expansion tank body 1, an observation window 4 fixedly installed on the outer end of the expansion tank body 1, a heating component provided on the outer end of the expansion tank body 1, a disassembly and assembly component provided on the bottom of the expansion tank body 1, a replacement component provided on the top of the disassembly and assembly component, the heating component including a heating sleeve 51, the heating sleeve 51 fixedly installed on the outer end of the expansion tank body 1, and a component fixedly installed inside the heating sleeve 51. Multiple heating tubes 52, made of corrosion-resistant stainless steel, are arranged in a ring array inside the heating jacket 51 to uniformly heat the expansion tank body 1. A heat-conducting plate 53 is fixedly installed on the inner wall of the heating jacket 51, and the heat-conducting plate 53 contacts the outer end of the expansion tank body 1. The observation window 4 is located at the opening of the heating jacket 51. The heat-conducting plate 53 is an aluminum alloy plate with a high thermal conductivity and a thickness of 3-5mm to ensure that the heat generated by the heating tubes 52 can be quickly and evenly transferred to the tank wall of the expansion tank body 1, avoiding local overheating.

[0025] Please see Figure 1 , Figure 2 , Figure 4 and Figure 5The assembly and disassembly components include a connecting plate 61, which is fixedly installed at the bottom of the expansion tank body 1. A mounting plate 62 is movably connected to the bottom of the connecting plate 61. A fixing bolt 63 penetrates the inner wall of the mounting plate 62. A sealing tube 64 is fixedly installed at the top of the mounting plate 62. A sealing ring 65 is fixedly installed at the outer end of the sealing tube 64. A sealing groove 66 is opened at the bottom of the connecting plate 61, and the sealing tube 64 extends into the interior of the sealing groove 66. The mounting plate 62 is located at the outer end of the water inlet pipe 3, which realizes quick assembly and disassembly between the expansion tank body 1 and the mounting plate 62, greatly simplifying the equipment installation and maintenance process. The connecting plate 61 and the mounting plate 62 are connected in a movable manner. With the fixing bolt 63 penetrating the inner wall of the mounting plate 62, the fastening and separation of the two can be easily completed. Meanwhile, the sealing tube 64 fixed at the top of the mounting plate 62 extends into the sealing groove 66 opened at the bottom of the connecting plate 61, and a sealing ring 65 is installed at the outer end of the sealing tube 64. This double sealing structure can effectively prevent external moisture, dust and other impurities from entering the connection part, avoid connection failure due to rust or pollution, significantly improve the sealing performance and stability of the connection, and ensure that the expansion tank maintains a good working condition during long-term use. The replacement component includes a threaded groove 71, which is opened at the top of the water inlet pipe 3. A threaded cylinder 72 is threadedly connected to the outer end of the threaded groove 71. A diaphragm body 73 is fixedly installed at the top of the threaded cylinder 72, and a sealing gasket 74 is fixedly installed at the bottom of the threaded cylinder 72. The diaphragm body 73 is located inside the expansion tank body 1, and the sealing gasket 74 is located between the threaded groove 71 and the threaded cylinder 72. By opening a threaded groove 71 at the top of the water inlet pipe 3 and threading the threaded cylinder 72 with the diaphragm body 73 fixedly installed to the threaded groove 71, the diaphragm body 73 can be conveniently replaced. When the diaphragm body 73 needs to be replaced due to aging, damage or other problems caused by long-term use, simply loosen the threaded sleeve 72 to remove the old diaphragm body 73 from the water inlet pipe 3, and then screw the new diaphragm body 73 with the threaded sleeve 72 into the threaded groove 71 to complete the replacement operation. The whole process does not require complicated tools, which greatly reduces the difficulty of operation and the time cost of replacement for maintenance personnel.

[0026] Working principle: When the visual diaphragm expansion tank is put into use, nitrogen or air at a preset pressure is first introduced into the expansion tank body 1 through the air inlet pipe 2, so that the diaphragm body 73 is in an initial expansion state. Then, the water to be treated enters the expansion tank body 1 through the water inlet pipe 3. As the water volume increases, the water will push the diaphragm body 73 upward to compress the gas. The compressibility of the gas is used to absorb the pressure fluctuations in the system. During operation, the operator can observe the working status of the internal diaphragm body 73 in real time through the observation window 4 at the outer end of the expansion tank body 1, including its expansion degree, whether there is abnormal deformation or damage, etc., so as to detect potential problems in time.

[0027] When the ambient temperature is low or the medium being transported is prone to freezing, the heating component is activated. After the heating tube 52 is powered on, heat is generated and quickly and evenly transferred to the tank wall of the expansion tank body 1 through the aluminum alloy heat conduction plate 53 with a high thermal conductivity, so as to heat and keep the medium inside the tank warm and prevent the medium from freezing and affecting the normal operation of the equipment.

[0028] If the diaphragm body 73 ages or is damaged after long-term use and needs to be replaced, first close the valves of the water inlet pipe 3 and the air inlet pipe 2 to release the pressure inside the tank. Then, use the disassembly and assembly components to remove the mounting plate 62 from the connecting plate 61, i.e., loosen the fixing bolts 63 to disengage the sealing tube 64 from the sealing groove 66, thereby exposing the bottom of the water inlet pipe 3. Next, rotate the threaded cylinder 72 to separate it from the threaded groove 71 at the top of the water inlet pipe 3, and then remove the old diaphragm body 73. Then, thread the new diaphragm body 73 into the threaded groove 71 through the threaded cylinder 72, ensuring that the sealing gasket 74 is tightly fitted between the threaded groove 71 and the threaded cylinder 72. Finally, re-fix the mounting plate 62 to the connecting plate 61 with the fixing bolts 63, so that the sealing tube 64 is reinserted into the sealing groove 66. Use the sealing ring 65 to ensure the sealing of the connection, thus completing the entire replacement process. The above is the working process of the entire device. Any content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A visual diaphragm expansion tank, characterized in that: The expansion tank body (1) includes an air inlet pipe (2) fixedly installed on the top of the expansion tank body (1), a water inlet pipe (3) movably installed on the bottom of the expansion tank body (1), an observation window (4) fixedly installed on the outer end of the expansion tank body (1), a heating component provided on the outer end of the expansion tank body (1), a disassembly and assembly component provided on the bottom of the expansion tank body (1), and a replacement component provided on the top of the disassembly and assembly component. The heating assembly includes a heating jacket (51), which is fixedly installed on the outer end of the expansion tank body (1). Multiple heating tubes (52) are fixedly installed inside the heating jacket (51), and a heat-conducting plate (53) is fixedly installed on the inner wall of the heating jacket (51).

2. The visual diaphragm expansion tank according to claim 1, characterized in that: The assembly includes a connecting plate (61), which is fixedly installed at the bottom of the expansion tank body (1). A mounting plate (62) is movably connected to the bottom of the connecting plate (61), and a fixing bolt (63) passes through the inner wall of the mounting plate (62).

3. A visual diaphragm expansion tank according to claim 2, characterized in that: A sealing tube (64) is fixedly installed on the top of the mounting plate (62), and a sealing ring (65) is fixedly installed on the outer end of the sealing tube (64). A sealing groove (66) is provided at the bottom of the connecting plate (61).

4. A visual diaphragm expansion tank according to claim 1, characterized in that: The replacement component includes a threaded groove (71) which is formed at the top of the water inlet pipe (3). The outer end of the threaded groove (71) is threadedly connected to a threaded cylinder (72). A diaphragm body (73) is fixedly installed at the top of the threaded cylinder (72), and a sealing gasket (74) is fixedly installed at the bottom of the threaded cylinder (72).

5. A visual diaphragm expansion tank according to claim 1, characterized in that: The heat-conducting plate (53) is in contact with the outer end of the expansion tank body (1), and the observation window (4) is located at the opening of the heating jacket (51).

6. A visual diaphragm expansion tank according to claim 3, characterized in that: The sealing tube (64) extends into the interior of the sealing groove (66), and the mounting plate (62) is located at the outer end of the water inlet pipe (3).

7. A visual diaphragm expansion tank according to claim 4, characterized in that: The diaphragm body (73) is located inside the expansion tank body (1), and the sealing gasket (74) is located between the threaded groove (71) and the threaded cylinder (72).

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