A mineral water storage tank for mineral water production

Abstract

This utility model discloses a mineral water storage tank for mineral water production, including a storage tank body. The tank body is characterized by an adjustable pressure regulating valve assembly. This assembly allows the tank to communicate with the outside air when a negative pressure is formed within the tank body reaching a first preset negative pressure value or a positive pressure is formed reaching a second preset positive pressure value. Compared to existing technologies, when the storage tank body experiences drainage, resulting in a negative pressure that decreases to the first preset negative pressure value, the adjustable pressure regulating valve assembly allows the tank body to communicate with the outside air, preventing tank collapse. Furthermore, when the storage tank body experiences high temperatures, causing its internal pressure to rise to the second preset positive pressure value, the adjustable pressure regulating valve assembly allows the tank body to communicate with the outside air, preventing tank explosion.

Description

Technical Field

[0001] This utility model relates to the technical field of mineral water production equipment, specifically to a mineral water storage tank for mineral water production. Background Technology

[0002] Mineral water storage tanks are core equipment for ensuring the safe storage of drinking water from production to the end consumer. Their design must take into account hygiene and safety, structural stability, and ease of operation.

[0003] Mineral water storage tanks are generally closed tanks. When draining water, negative pressure may form inside, causing the tank to collapse; or the internal pressure may increase under high temperature, leading to the risk of explosion. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a mineral water storage tank for mineral water production, so as to solve the problem that the mineral water storage tank is damaged under negative pressure or overpressure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a mineral water storage tank for mineral water production, comprising a storage tank body, wherein an adjustable pressure regulating valve assembly is provided on the storage tank body, the adjustable pressure regulating valve assembly being used to connect with the outside air when a negative pressure is formed in the storage tank body to reach a first preset negative pressure value or a positive pressure is formed to reach a second preset positive pressure value.

[0006] Compared with the prior art, the present invention has the following beneficial effects:

[0007] This mineral water production storage tank uses an adjustable pressure regulating valve assembly installed on the tank body. When the storage tank body is draining, causing a negative pressure to form inside and decrease to a first preset negative pressure value, the adjustable pressure regulating valve assembly allows the storage tank body to be connected to the outside air, preventing the tank body from collapsing. When the storage tank body is at a high temperature, causing the internal pressure to rise to a second preset positive pressure value, the adjustable pressure regulating valve assembly allows the storage tank body to be connected to the outside air, preventing the tank body from exploding. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0009] Figure 2 for Figure 1 A schematic diagram of the structure of a medium-adjustable pressure regulating valve assembly;

[0010] Figure 3 for Figure 2 A sectional view;

[0011] Figure 4 for Figure 2 Schematic diagram of the connection between the positive pressure regulating unit and the negative pressure regulating unit on the annular mounting block Figure 1 ;

[0012] Figure 5 for Figure 2 Schematic diagram of the connection between the positive pressure regulating unit and the negative pressure regulating unit on the annular mounting block Figure 2 .

[0013] The reference numerals in the accompanying drawings include: storage tank body 1, adjustable pressure regulating valve assembly 2, valve housing 21, first valve housing section 211, second valve housing section 212, annular mounting block 22, center hole 23, positive pressure regulating part 24, positive pressure sealing block 241, positive pressure regulating spring 242, positive pressure limiting guide rod 243, connecting hole 25, negative pressure regulating part 26, negative pressure sealing block 261, negative pressure regulating spring 262, negative pressure limiting guide rod 263, and filter screen 27. Detailed Implementation

[0014] The present invention will be further described in detail below through specific embodiments:

[0015] like Figure 1 As shown in the figure, this utility model embodiment proposes a mineral water storage tank for mineral water production, including a storage tank body 1. An adjustable pressure regulating valve assembly 2 is provided on the storage tank body 1. The adjustable pressure regulating valve assembly 2 is used to connect with the outside air when a negative pressure is formed in the storage tank body 1 to reach a first preset negative pressure value or a positive pressure is formed to reach a second preset positive pressure value.

[0016] This mineral water production storage tank has an adjustable pressure regulating valve assembly 2 installed on the tank body 1. When the storage tank body 1 is draining water, causing a negative pressure to form inside and decrease to a first preset negative pressure value, the adjustable pressure regulating valve assembly 2 allows the storage tank body 1 to be connected to the outside air, preventing the tank from collapsing. When the storage tank body 1 is at high temperature, causing the internal pressure to rise to a second preset positive pressure value, the adjustable pressure regulating valve assembly 2 allows the storage tank body 1 to be connected to the outside air, preventing the tank from exploding.

[0017] In this embodiment, the storage tank body 1 is provided with a support frame at the bottom, with an inlet pipe connected to the top and a drain pipe connected to the bottom. Both the inlet pipe and the drain pipe are equipped with regulating valves.

[0018] To better understand the adjustable pressure regulating valve assembly 2, it will be optimized below; such as Figures 2-5 As shown, according to another embodiment of the present invention, a mineral water storage tank for mineral water production is described.

[0019] The adjustable pressure regulating valve assembly 2 includes a valve housing 21 and an annular mounting block 22. The valve housing 21 has a through hole and one end of it is connected to the storage tank body 1. The annular mounting block 22 is fixedly installed in the through hole and has a positive pressure regulating part 24 on its side away from the storage tank body 1, which can seal or unseal its central hole 23. The center of the positive pressure regulating part 24 has a connecting hole 25, and a negative pressure regulating part 26 is provided on the side of the positive pressure regulating part 24 near the storage tank body 1, which can seal or unseal the connecting hole 25.

[0020] In this embodiment, the valve housing 21 is used to form a through hole communicating with the inside of the storage tank body 1, and the annular mounting block 22 serves as a mounting support for the positive pressure regulating part 24 and the negative pressure regulating part 26.

[0021] Under normal use, the positive pressure regulating part 24 seals the central hole 23, the negative pressure regulating part 26 seals the connecting hole 25, and the adjustable pressure regulating valve assembly 2 disconnects the storage tank body 1 from the outside air. When the storage tank body 1 experiences a negative pressure during drainage and decreases to a first preset negative pressure value, the negative pressure regulating part 26 unseals the connecting hole 25, allowing the connecting hole to open and connect the storage tank body 1 with the outside air. Air enters the storage tank body 1, pressurizing it and preventing the tank from collapsing. When the storage tank body 1 experiences a high temperature that causes the internal pressure to rise to a second preset positive pressure value, the positive pressure regulating part 24 unseals the central hole 23, allowing the connecting hole to open and connect the storage tank body 1 with the outside air. This releases pressure within the storage tank body 1 and prevents the tank from exploding.

[0022] It should be noted that: assuming the storage tank body 1 is a plastic tank, its critical negative pressure range is -0.02MPa to -0.05MPa (approximately -0.2 to -0.5bar). Exceeding this range may cause deformation or collapse, so the first preset negative pressure value can be designed as -0.01MPa; its maximum allowable working pressure is 0.02MPa to 0.05MPa (approximately 0.2 to 0.5bar). Exceeding this pressure may cause an explosion, so the second preset positive pressure value can be designed as 0.01MPa; the specific design and adjustment can be made reasonably according to the actual situation.

[0023] Based on the above solution:

[0024] First, let's elaborate on the positive pressure regulating unit 24:

[0025] The positive pressure regulating part 24 includes a positive pressure mounting groove and a positive pressure sealing block 241. The positive pressure mounting groove is provided in a plurality of grooves along the circumference of the side of the annular mounting block 22 away from the storage tank body 1. The positive pressure sealing block 241 is attached to the side of the annular mounting block 22 away from the storage tank body 1 and completely covers the central hole 23. Each positive pressure mounting groove is connected to a positive pressure regulating spring 242 connected to the positive pressure sealing block 241. A connecting hole 25 is provided on the positive pressure sealing block 241.

[0026] In this embodiment, there are two positive pressure mounting slots, and the positive pressure sealing block 241 is a circular block. Under normal use, the two positive pressure adjusting springs 242 cooperate to make the positive pressure sealing block 241 tightly attached to the side of the annular mounting block 22 away from the storage tank body 1 to seal the central hole 23. When the internal pressure of the storage tank body 1 rises to the second preset positive pressure value due to high temperature, the positive pressure adjusting spring 242 undergoes elastic deformation to elongate, and the positive pressure sealing block 241 moves away from the central hole 23 to open the guide hole, and the pressure inside the storage tank body 1 is released. After the pressure is released, the positive pressure adjusting spring 242 returns to its elastic deformation to make the positive pressure sealing block 241 move in the opposite direction until the positive pressure sealing block 241 is once again tightly attached to the side of the annular mounting block 22 away from the storage tank body 1 to seal the central hole 23.

[0027] To prevent excessive deformation of the positive pressure adjusting spring 242, the positive pressure adjusting part 24 also includes a positive pressure limiting guide rod 243. There are multiple positive pressure limiting guide rods 243 arranged circumferentially on the side of the annular mounting block 22 away from the storage tank body 1. One end of each positive pressure limiting guide rod 243 is fixedly connected to the annular mounting block 22, and the other end of each rod freely passes through the positive pressure sealing block 241 and extends a certain distance to form a positive pressure limiting head.

[0028] In this embodiment, there are two positive pressure limiting guide rods 243. The two positive pressure limiting guide rods 243 cooperate to guide the movement of the positive pressure sealing block 241, and the positive pressure limiting head limits the amount of movement of the positive pressure sealing block 241, thereby controlling the deformation of the positive pressure adjusting spring 242 and preventing the deformation of the positive pressure adjusting spring 242 from being too large and causing it to lose its reset ability.

[0029] The two positive pressure limiting guide rods 243 and the two positive pressure mounting grooves are on the same circle.

[0030] Next, the negative pressure regulating unit 26 will be explained in detail:

[0031] The negative pressure regulating part 26 includes a negative pressure mounting groove and a negative pressure sealing block 261. The negative pressure mounting groove is provided in multiple ways along the circumference of the side of the positive pressure sealing block 241 near the storage tank body 1. The negative pressure sealing block 261 is attached to the side of the positive pressure sealing block 241 near the storage tank body 1 and completely covers the connecting hole 25. Each negative pressure mounting groove is connected to a negative pressure regulating spring 262 connected to the negative pressure sealing block 261.

[0032] In this embodiment, there are two negative pressure mounting slots, and the negative pressure sealing block 261 is a circular block. Under normal use, the two negative pressure adjusting springs 262 cooperate to make the negative pressure sealing block 261 tightly attached to the side of the positive pressure sealing block 241 near the storage tank body 1 to seal the connecting hole 25. When the storage tank body 1 is draining, causing a negative pressure to form inside and decrease to a first preset negative pressure value, the negative pressure adjusting spring 262 is driven to elastically deform and extend, and the negative pressure sealing block 261 moves away from the connecting hole 25 to open the connecting hole, allowing outside air to enter the storage tank body 1 and increase the pressure. After the storage tank body 1 is pressurized, the negative pressure adjusting spring 262 returns to its elastic deformation, causing the negative pressure sealing block 261 to move in the opposite direction until the negative pressure sealing block 261 is once again tightly attached to the side of the positive pressure sealing block 241 away from the storage tank body 1 to seal the connecting hole 25.

[0033] To prevent excessive deformation of the negative pressure adjusting spring 262, the negative pressure adjusting part 26 also includes a negative pressure limiting guide rod 263. There are multiple negative pressure limiting guide rods 263 arranged circumferentially on the side of the positive pressure sealing block 241 near the storage tank body 1. One end of each of the multiple negative pressure limiting guide rods 263 is fixedly connected to the positive pressure sealing block 241, and the other end of each rod freely passes through the negative pressure sealing block 261 and extends a certain distance to form a negative pressure limiting head.

[0034] In this embodiment, there are also two negative pressure limiting guide rods 263. The two negative pressure limiting guide rods 263 cooperate to guide the movement of the negative pressure sealing block 261, and the negative pressure limiting head limits the amount of movement of the negative pressure sealing block 261, thereby controlling the deformation of the negative pressure adjusting spring 262 and preventing the deformation of the negative pressure adjusting spring 262 from being too large and causing it to lose its reset ability.

[0035] The two negative pressure limiting guide rods 263 and the two negative pressure mounting grooves are on the same circle.

[0036] It should be noted that the elastic deformation capabilities of the positive pressure adjusting spring 242 and the negative pressure adjusting spring 262 were selected after multiple tests and can meet the above-mentioned working requirements.

[0037] To facilitate the installation or replacement of the positive pressure regulating unit 24 and the negative pressure regulating unit 26, such as Figure 3As shown, according to another embodiment of the present invention, a mineral water storage tank for mineral water production is provided, wherein the valve shell 21 includes a first valve shell section 211 connected to the storage tank body 1 and a second valve shell section 212 detachably connected to the first valve shell section 211, a through hole passing through the first valve shell section 211 and the second valve shell section 212, and an annular mounting block 22 snap-fitted and fixed between the first valve shell section 211 and the second valve shell section 212.

[0038] In this embodiment, both the first valve housing section 211 and the second valve housing section 212 are cylindrical, and the storage tank body 1 has an installation hole on its top wall. One end of the first valve housing section 211 is threaded into the installation hole, and an annular limiting groove is formed on the inner wall of the other end along its circumferential direction. After the annular mounting block 22 is inserted into the first valve housing section 211, it abuts against the annular limiting groove. Then, one end of the second valve housing section 212 is threaded into the annular limiting groove to abut against the annular mounting block 22, thereby stably fixing the annular mounting block 22.

[0039] When the positive pressure regulating part 24 or the negative pressure regulating part 26 needs to be replaced, since the positive pressure regulating part 24 and the negative pressure regulating part 26 are fitted on the annular mounting block 22, the positive pressure regulating part 24, the negative pressure regulating part 26 and the annular mounting block 22 are replaced as a whole. During operation, it is only necessary to unscrew the connection between the first valve body section 211 and the second valve body section 212.

[0040] To prevent impurities from entering the via, such as Figure 2 and Figure 3 As shown, according to another embodiment of the present invention, a mineral water storage tank for mineral water production is provided with a filter screen 27 at the end of the through hole away from the storage tank body 1.

[0041] In this embodiment, specifically, an annular mounting groove is formed on the inner wall of the second valve housing section 212 away from the first valve housing section 211 along its circumferential direction. The filter screen 27 fits perfectly into the annular mounting groove. Then, a locking sleeve is threaded onto the second valve housing section 212 away from the first valve housing section 211 to abut against the filter screen 27, so that the filter screen 27 is stably installed and the filter screen 27 prevents external impurities from entering the through hole.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A mineral water storage tank for mineral water production, comprising a storage tank body, characterized in that, The storage tank body is equipped with an adjustable pressure regulating valve assembly, which is used to connect with the outside air when a negative pressure is formed in the storage tank body to reach a first preset negative pressure value or a positive pressure is formed to reach a second preset positive pressure value. The adjustable pressure regulating valve assembly includes: A valve housing, wherein the valve housing has a through-hole and one end of which is connected to the storage tank body; An annular mounting block is fixedly installed inside a through hole, and a positive pressure regulating part is provided on the side away from the storage tank body to seal or unseal its central hole. The center of the positive pressure regulating part has a connecting hole, and a negative pressure regulating part is provided on the side of the positive pressure regulating part close to the storage tank body to seal or unseal the connecting hole.

2. A mineral water storage tank for mineral water production according to claim 1, characterized in that, The positive pressure regulating unit includes: Positive pressure mounting slots, wherein multiple positive pressure mounting slots are provided on the side of the annular mounting block away from the storage tank body along its circumference; A positive pressure sealing block is attached to the side of the annular mounting block away from the storage tank body and completely covers the central hole. Each positive pressure mounting groove is connected to a positive pressure adjusting spring connected to the positive pressure sealing block, and a connecting hole is opened on the positive pressure sealing block.

3. A mineral water storage tank for mineral water production according to claim 2, characterized in that, The positive pressure regulating unit further includes: Positive pressure limiting guide rods, there are multiple positive pressure limiting guide rods arranged circumferentially on the side of the annular mounting block away from the storage tank body, one end of each positive pressure limiting guide rod is fixedly connected to the annular mounting block, and the other end of each rod freely passes through the positive pressure sealing block and extends a certain distance to form a positive pressure limiting head.

4. A mineral water storage tank for mineral water production according to claim 2, characterized in that, The negative pressure regulating unit includes: A negative pressure mounting groove is provided, wherein multiple negative pressure mounting grooves are provided on the side of the positive pressure sealing block near the storage tank body along its circumference; A negative pressure sealing block is attached to the side of the positive pressure sealing block near the storage tank body and completely covers the connecting hole. Each negative pressure mounting groove is connected to a negative pressure adjusting spring connected to the negative pressure sealing block.

5. A mineral water storage tank for mineral water production according to claim 4, characterized in that, The negative pressure regulating unit also includes: The negative pressure limiting guide rods are multiple in number and arranged circumferentially on the side of the positive pressure sealing block near the storage tank body. One end of each negative pressure limiting guide rod is fixedly connected to the positive pressure sealing block, and the other end of each rod freely passes through the negative pressure sealing block and extends a certain distance to form a negative pressure limiting head.

6. A mineral water storage tank for mineral water production according to claim 1, characterized in that, A filter screen is installed at the end of the through hole away from the storage tank body.

7. A mineral water storage tank for mineral water production according to claim 1, characterized in that, The valve housing includes a first valve housing section connected to the storage tank body and a second valve housing section detachably connected to the first valve housing section. A through hole passes through the first valve housing section and the second valve housing section, and an annular mounting block is snapped and fixed between the first valve housing section and the second valve housing section.

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