Water tank with constant pressure metering function

Abstract

The utility model discloses a water tank with constant pressure measurement function belongs to water tank technical field, aims at solving the most water outlet point of prior art is located water tank under one side of liquid level, and the position of water outlet point is fixed immovably, along with the water supply of carrying out, the liquid level in water supply water tank is constantly reduced, wherein the distance between water outlet point and liquid level will constantly reduce, lead to the water pressure of water outlet point constantly small, although the water tank usually has the water replenishing mechanism to reach the purpose of time water replenishing, but actually still can form fluctuation to the water pressure of water supply water tank, cannot realize constant pressure water supply, and the water replenishing of water tank single, every day also cannot carry out measurement statistics, thereby the actual water replenishing of subsequent management personnel cannot know water tank accurately, thereby bring the problem of influence to the judgment and overhaul of personnel. Including stainless steel water tank, the upper side of stainless steel water tank is connected with inlet pipe, and the other side below of stainless steel water tank is connected with outlet pipe.

Description

Technical Field

[0001] This utility model belongs to the field of water tank technology, specifically relating to a water tank with constant pressure metering function. Background Technology

[0002] Secondary water supply refers to the process by which units or individuals store and pressurize urban public water supply or self-built facility water supply, and then supply it to users or for their own use through pipelines. Secondary water supply often uses water storage tanks. The maintenance of secondary water supply storage tanks is directly related to the quality of secondary water supply. Generally, in order to ensure the service life of water storage tanks, they are often made of stainless steel.

[0003] Currently, in daily use, most water tanks have their outlets located on one side below the liquid level, and the outlet position remains fixed. As water supply continues, the liquid level in the tank continuously decreases, and the distance between the outlet and the liquid level decreases, resulting in a continuous decrease in water pressure at the outlet. Although water tanks usually have a water replenishment mechanism to replenish water in a timely manner, this still causes fluctuations in the water pressure at the outlet, making it impossible to achieve constant pressure water supply. Furthermore, the amount of water replenished to the tank at one time or daily cannot be measured and recorded, making it impossible for subsequent management personnel to accurately know the actual amount of water replenished to the tank, thus affecting personnel judgment and maintenance. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a water tank with constant pressure metering function. This addresses the problem that in most existing technologies, the water outlet is located on one side below the liquid surface inside the tank, and the position of the outlet is fixed. As water supply continues, the liquid level in the tank continuously decreases, and the distance between the outlet and the liquid surface continuously decreases, resulting in a continuous decrease in water pressure at the outlet. Although water tanks usually have a water replenishment mechanism to achieve timely water replenishment, this still causes fluctuations in the water pressure at the outlet, making it impossible to achieve constant pressure water supply. Furthermore, the amount of water replenished in a single instance or daily cannot be measured and statistically analyzed, making it impossible for subsequent management personnel to accurately know the actual amount of water replenished, thus affecting personnel judgment and maintenance.

[0006] (2) Technical solution

[0007] To solve the above-mentioned technical problems, this utility model provides a water tank with constant pressure metering function, including a stainless steel water tank. An inlet pipe is connected to one side of the upper part of the stainless steel water tank, and an outlet pipe is connected to the lower part of the other side. A water replenishment and constant pressure mechanism is installed both inside and outside the stainless steel water tank. A pre-filtration mechanism is provided in the middle of one section of the outlet pipe. The water replenishment and constant pressure mechanism includes a water replenishment component, which is installed inside the stainless steel water tank. A fixing bracket is installed on one side of the inside of the stainless steel water tank, and a metal basin is fixed above the middle of the fixing bracket. A constant pressure metering component is installed together at one end of the outlet pipe and one section of the inlet pipe.

[0008] Furthermore, the water replenishment component includes a valve body mounting base, which is installed at the end of the water inlet pipe. A valve core is installed in the middle of the valve body mounting base, and a valve stem is connected to one side of the valve core. A valve ball is connected to the end of the valve stem.

[0009] Furthermore, the two ends of the valve stem are respectively connected to the valve core and the valve ball.

[0010] Furthermore, the constant pressure metering component includes a small variable frequency water pump, with the inlet end of the small variable frequency water pump connected to the outlet pipe. A fixing block is connected to one side of the small variable frequency water pump, and a discharge pipe is connected to the outlet end of the small variable frequency water pump. A pressure sensor is installed on one side of the discharge pipe, and a connecting wire is connected between the pressure sensor and the end of the small variable frequency water pump. An electromagnetic flow meter is installed in the middle of a section of the inlet pipe.

[0011] Furthermore, the pressure sensor and the connection line to the end of the small variable frequency water pump are both electrically connected to an external control terminal.

[0012] Furthermore, the pre-filtration mechanism includes a central frame, which is installed in the middle section of the outlet pipe. A guide frame is provided in the middle of the central frame, and hand-holding grooves are provided on both sides of the top of the guide frame. Magnetic strips are provided around the top of the central frame, and a mounting plate is fixedly provided at the top inside the central frame. A sealing gasket is provided at the bottom of the top of the guide frame. A filter frame is installed in the middle of the guide frame, and a dirt-collecting plate is connected to one side of the bottom of the filter frame.

[0013] Furthermore, the magnetic strips on the top of the guide frame and the middle frame are magnetically fixed together.

[0014] Furthermore, the filter frame and the sludge-receiving plate are fixedly connected, and the filter frame and the sludge-receiving plate are designed in an L-shape.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] In practical use, when downstream water demand arises, the inevitable fluctuations in water volume within the stainless steel water tank will cause pressure fluctuations at the outlet pipe. A pressure sensor installed at the outlet pipe can detect these pressure changes in real time and feed the data back to the control unit via a connecting line. The control unit can then compare this to the threshold value under stable constant pressure and transmit control commands to a small variable frequency water pump via another connecting line. Specifically, when downstream water demand increases and pressure decreases, the control unit increases the pump speed to increase the water output and maintain constant pressure; conversely, when water demand decreases and pressure increases, the controller decreases the pump speed to reduce the water output and prevent excessive pressure. This achieves the desired effect on the stainless steel water tank. The constant pressure treatment of the water in the steel water tank is achieved through the presence of a water replenishment component. When the water level in the tank drops below the set height of the valve ball, the valve ball will descend due to the lack of buoyancy, thereby controlling the valve core through the valve rod linkage to open the inlet pipe for water replenishment. An electromagnetic flow meter is installed at one end of the inlet pipe, mainly used to count the amount of water replenished at one time and daily, facilitating the analysis of water usage patterns or leak detection. At the same time, a metal basin is installed below the outlet of the valve core, which can receive and buffer the water flow, making the water flow more stable and preventing direct impact on the normal operation of components such as the float. With the above, the purpose of real-time water replenishment and constant pressure measurement of water flow can be achieved.

[0018] Before the water flows through the outlet pipe and then through the small variable frequency water pump, it passes through the pre-filtration mechanism area. The filter frame in this mechanism can filter impurities from the water, mainly to intercept possible rust, welding slag, silt, biological impurities such as algae, etc., to a certain extent preventing these impurities from entering the water pump impeller, seals and other precision parts, avoiding impeller wear, jamming or seal leakage, and further extending the water pump's life. Afterwards, the guide frame can be pulled out from the middle frame to clean the filter frame and the dirt-collecting plate used to receive some impurities. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the three-dimensional internal structure;

[0022] Figure 3 for Figure 1 Schematic diagram of the structure at point A in the middle;

[0023] Figure 4 This is a schematic diagram of the pre-filtration mechanism.

[0024] Figure 5 This is a partial structural diagram of the pre-filtration mechanism.

[0025] The labels in the attached diagram are as follows: 1. Stainless steel water tank; 2. Inlet pipe; 3. Outlet pipe; 4. Water replenishment and constant pressure mechanism; 41. Water replenishment component; 411. Valve body mounting base; 412. Valve core; 413. Valve stem; 414. Valve ball; 42. Fixing bracket; 43. Metal basin; 44. Constant pressure metering component; 441. Small variable frequency water pump; 442. Fixing block; 443. Discharge pipe; 444. Pressure sensor; 445. Connecting wire; 446. Electromagnetic flow meter; 5. Pre-filtration mechanism; 51. Middle mounting bracket; 52. Guide bracket; 53. Hand lock groove; 54. Magnetic strip; 55. Mounting plate; 56. Sealing gasket; 57. Filter frame; 58. Dirt collection plate. Detailed Implementation

[0026] 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.

[0027] This specific embodiment is a water tank with constant pressure metering function, and its structural diagram is shown below. Figures 1 to 4As shown, the system includes a stainless steel water tank 1. An inlet pipe 2 is connected to one side of the upper part of the stainless steel water tank 1, and an outlet pipe 3 is connected to the lower part of the other side of the stainless steel water tank 1. A water replenishment and constant pressure mechanism 4 is installed both inside and outside the stainless steel water tank 1. A pre-filtration mechanism 5 is installed in the middle of a section of the outlet pipe 3. The water replenishment and constant pressure mechanism 4 includes a water replenishment component 41, which is installed inside the stainless steel water tank 1. The water replenishment component 41 includes a valve body mounting seat 411, which is installed at the end of the inlet pipe 2. A valve body mounting seat 411 is installed in the middle of the valve body mounting seat 411. A valve core 412 is provided, and a valve stem 413 is connected to one side of the valve core 412. A valve ball 414 is connected to the end of the valve stem 413. The two ends of the valve stem 413 are respectively connected to the valve core 412 and the valve ball 414. A fixing bracket 42 is installed on one side of the interior of the stainless steel water tank 1, and a metal basin 43 is fixed above the middle of the fixing bracket 42. A constant pressure metering component 44 is jointly installed at one end of the water outlet pipe 3 and a section of the water inlet pipe 2. The constant pressure metering component 44 includes a small variable frequency water pump 441, and the inlet end of the small variable frequency water pump 441 is connected to the water outlet pipe 3. A fixed block 442 is connected to one side of the variable frequency water pump 441, and a discharge pipe 443 is connected to the outlet end of the small variable frequency water pump 441. A pressure sensor 444 is installed on one side of the discharge pipe 443, and a connecting wire 445 connects the pressure sensor 444 to the end of the small variable frequency water pump 441. An electromagnetic flow meter 446 is installed in the middle of a section of the inlet pipe 2. The connecting wire 445 between the pressure sensor 444 and the end of the small variable frequency water pump 441 is electrically connected to an external control terminal. In actual use, when downstream water is needed, the stainless steel water tank 1 uses... Changes in water volume within the stainless steel water tank 1 inevitably cause pressure fluctuations in the water outlet pipe 3. At this time, the pressure sensor 444 installed at the discharge pipe 443 can detect the pressure changes in real time and feed the values ​​back to the control terminal via the connection line 445. In this state, the control terminal can compare the threshold under stable constant pressure in the water tank and use another connection line 445 to transmit control commands to the small variable frequency water pump 441. Specifically, when the downstream water consumption increases and the pressure drops, the control terminal increases the pump speed to increase the water output and maintain constant pressure.When water consumption decreases and pressure increases, the controller reduces the water pump speed to decrease the water output and prevent excessive pressure. This achieves constant pressure control within the stainless steel water tank 1. Because the stainless steel water tank 1 contains a water replenishment component 41, when the water level drops below the set height of the valve ball 414, the valve ball 414 will descend due to the lack of buoyancy. This, in turn, causes the valve core 412 to open the inlet pipe 2 via the connecting rod assembly of the valve stem 413, replenishing water. An electromagnetic flow meter 446 is installed at one end of the inlet pipe 2, primarily used to track single replenishment volumes and daily replenishment volumes, facilitating analysis of water usage patterns and leak detection. A metal basin 43 is located below the outlet of the valve core 412, serving to receive and buffer the water flow, ensuring a smoother flow and preventing direct impact on components such as the float. Together, these features achieve real-time water replenishment and constant pressure metering.

[0028] The pre-filtration mechanism 5 includes a central frame 51, which is installed in the middle section of the outlet pipe 3. A guide frame 52 is provided in the middle of the central frame 51, and hand-holding grooves 53 are provided on both sides of the top of the guide frame 52. Magnetic strips 54 are provided around the top of the central frame 51, and the top of the guide frame 52 and the magnetic strips 54 above the central frame 51 are magnetically fixed together. A mounting plate 55 is fixedly provided at the top inside the central frame 51. A sealing gasket 56 is provided at the bottom of the top of the guide frame 52. A filter frame 57 is installed in the middle of the guide frame 52, and a dirt-collecting plate 58 is connected to one side of the bottom of the filter frame 57. The filter frame 57 and the dirt-collecting plate 58 are fixedly connected. Furthermore, the filter frame 57 and the dirt-receiving plate 58 are designed in an L-shape. Before the water flows through the outlet pipe 3 and then through the small variable frequency water pump 441, it will pass through the pre-filtration mechanism 5 area. The filter frame 57 in this mechanism can filter impurities in the water. It is mainly used to intercept possible rust, welding slag, mud, biological impurities such as algae, etc., to a certain extent to prevent these impurities from entering the water pump impeller, seals and other precision parts, avoiding impeller wear, jamming or seal leakage, and further extending the water pump life. Afterwards, the guide frame 52 can be pulled out from the middle frame 51 to clean the filter frame 57 and the dirt-receiving plate 58 used to receive some impurities.

[0029] Working Principle: During actual use, when downstream water is needed, the inevitable changes in water consumption within the stainless steel water tank 1 will cause pressure fluctuations at the outlet pipe 3. At this time, the pressure sensor 444 installed at the discharge pipe 443 can detect these pressure changes in real time and feed the values ​​back to the control terminal via the connection line 445. In this state, the control terminal can compare the pressure with the threshold value under stable constant pressure in the water tank and transmit control commands to the small variable frequency water pump 441 via another connection line 445. Specifically, when downstream water is used… When the water volume increases and the pressure decreases, the control terminal increases the water pump speed to increase the water output and maintain constant pressure. Conversely, when the water volume decreases and the pressure increases, the controller decreases the water pump speed to reduce the water output and prevent excessive pressure. This achieves constant pressure control within the stainless steel water tank 1. Because the stainless steel water tank 1 is equipped with a water replenishment component 41, when the water level in the tank drops below the height setting of the valve ball 414, the valve ball 414 will descend due to the lack of buoyancy, thereby controlling the valve core 412 via the connecting rod assembly of the valve stem 413 to the inlet pipe 2. The system is activated for water replenishment. An electromagnetic flow meter 446 is installed in section 2 of the inlet pipe, primarily used to track single-time and daily water replenishment volumes. This facilitates analysis of water tank usage patterns and leak detection. A metal basin 43 is located below the outlet of valve core 412, serving to receive and buffer the water flow, ensuring a smoother flow and preventing direct impact on components like the float. Together, these features achieve real-time water replenishment and constant pressure metering. It's worth noting that the water flow, after passing through outlet pipe 3... Before passing through the small variable frequency water pump 441, the water will pass through the pre-filtration mechanism 5 area. The filter frame 57 in this mechanism can filter impurities in the water. It is mainly used to intercept possible rust, welding slag, silt, biological impurities such as algae, etc., to a certain extent to prevent these impurities from entering the water pump impeller, seals and other precision parts, avoiding impeller wear, jamming or seal leakage, and further extending the water pump life. Afterwards, the guide frame 52 can be pulled out from the intermediate frame 51 to clean the filter frame 57 and the dirt receiving plate 58 used to receive some impurities.

[0030] All technical features in this embodiment can be freely combined according to actual needs.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A water tank with constant pressure metering function, comprising a stainless steel water tank (1), characterized in that, The stainless steel water tank (1) is connected to an inlet pipe (2) on one side above and an outlet pipe (3) on the other side below. A water replenishment and constant pressure mechanism (4) is installed inside and outside the stainless steel water tank (1). A pre-filtration mechanism (5) is provided in the middle of a section of the outlet pipe (3). The water replenishment and constant pressure mechanism (4) includes a water replenishment component (41), which is installed inside the stainless steel water tank (1). A fixing bracket (42) is installed on one side inside the stainless steel water tank (1), and a metal basin (43) is fixed above the middle of the fixing bracket (42). A constant pressure metering component (44) is installed at one end of the outlet pipe (3) and a section of the inlet pipe (2).

2. A water tank with constant pressure metering function according to claim 1, characterized in that, The water replenishment component (41) includes a valve body mounting seat (411), which is installed at the end of the water inlet pipe (2). A valve core (412) is installed in the middle of the valve body mounting seat (411), and a valve stem (413) is connected to one side of the valve core (412). A valve ball (414) is connected to the end of the valve stem (413).

3. A water tank with constant pressure metering function according to claim 2, characterized in that, The two ends of the valve stem (413) are connected to the valve core (412) and the valve ball (414), respectively.

4. A water tank with constant pressure metering function according to claim 1, characterized in that, The constant pressure metering component (44) includes a small variable frequency water pump (441), and the inlet end of the small variable frequency water pump (441) is connected to the outlet pipe (3). A fixing block (442) is connected to one side of the small variable frequency water pump (441), and a discharge pipe (443) is connected to the outlet end of the small variable frequency water pump (441). A pressure sensor (444) is installed on one side of the discharge pipe (443), and a connecting wire (445) is connected between the pressure sensor (444) and the end of the small variable frequency water pump (441). An electromagnetic flow meter (446) is installed in the middle of a section of the inlet pipe (2).

5. A water tank with constant pressure metering function according to claim 4, characterized in that, The pressure sensor (444) and the connecting wire (445) at the end of the small variable frequency water pump (441) are both electrically connected to the external control terminal.

6. A water tank with constant pressure metering function according to claim 1, characterized in that, The pre-filtration mechanism (5) includes a central frame (51), which is installed in the middle section of the outlet pipe (3). A guide frame (52) is provided in the middle of the central frame (51), and a hand-holding groove (53) is provided on both sides of the top of the guide frame (52). A magnetic strip (54) is provided around the top of the central frame (51), and a mounting plate (55) is fixedly provided at the top inside the central frame (51). A sealing gasket (56) is provided at the bottom of the top of the guide frame (52). A filter frame (57) is installed in the middle of the guide frame (52), and a dirt-collecting plate (58) is connected to one side of the bottom of the filter frame (57).

7. A water tank with constant pressure metering function according to claim 6, characterized in that, The top of the guide frame (52) and the magnetic strip (54) above the middle frame (51) are magnetically fixed together.

8. A water tank with constant pressure metering function according to claim 6, characterized in that, The filter frame (57) and the dirt receiving plate (58) are fixedly connected, and the filter frame (57) and the dirt receiving plate (58) are designed in an L-shape.

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