Diaphragm type air pressure water tank
By using rubber diaphragm to separate the water chamber and the air chamber in the diaphragm type air pressure water tank, combined with the internal threaded interface filter, the contact problem between the pressure switch and the sensor is solved, the accuracy and life of the equipment are improved, and rust and impurities are prevented from entering.
Patent Information
- Application Number
- CN202422456824.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-10-11
AI Technical Summary
In existing diaphragm-type air pressure water tanks, pressure switches and pressure sensors come into contact with liquid for a long time, resulting in reduced accuracy, shortened service life, and are susceptible to water hammer effects and rust blockage, resulting in equipment failure.
The tank is separated into a water chamber and an air chamber by using a rubber diaphragm. The pressure is monitored by the compressed air chamber gas to prevent direct contact between the pressure control device and the liquid, and a filter is installed at the internal threaded interface to prevent rust and impurities from entering.
The precision maintenance and service life of the pressure control device are achieved, the installation convenience is improved, and the water hammer effect and rust blockage is prevented.
Smart Images
Figure CN223135249U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pneumatic water tanks, and more specifically to a diaphragm pneumatic water tank. Background Technique
[0002] A diaphragm pneumatic water tank is a hydraulic device that utilizes the compressibility of water and the expansibility of gas to achieve stable water supply and pressure regulation in a water supply system. It is usually composed of a tank body and a rubber diaphragm, etc. It is widely used in occasions such as the pressure stabilization of central air-conditioning circulating water, the expansion system of steam water supply, the makeup water pressure stabilization of heating system circulating water, the makeup water pressure stabilization of fire protection water supply system, variable frequency water supply pressure stabilization, boiler makeup water, and pneumatic water supply.
[0003] However, in existing diaphragm pneumatic water tanks, the pressure switch and pressure sensor are often installed at the part in direct contact with the liquid. Due to long-term direct contact with the liquid, there are the following technical problems: 1) Dirt or impurities in the liquid directly or indirectly penetrate into the cavity of the pressure switch or pressure sensor, affecting the accuracy of the pressure switch or pressure sensor, reducing the service life or even causing failure; 2) Due to the different materials of the pressure switch or pressure sensor, long-term contact with the liquid will cause rusting, affecting its accuracy, reducing the service life or even causing failure; 3) Water hammer effect is likely to occur during use, causing damage to the pressure switch or pressure sensor; 4) Rust on the tank body is likely to cause the connection ports between the pressure switch and the pressure sensor and the tank body to become smaller or blocked, resulting in failure.
[0004] Therefore, providing a reliable diaphragm pneumatic water tank is an urgent problem to be solved by those skilled in the art. Content of the Utility Model
[0005] In view of this, the utility model provides a diaphragm pneumatic water tank to ensure the reliable use of the pressure switch and pressure sensor.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0007] A diaphragm pneumatic water tank, comprising a tank body, a rubber diaphragm, an air valve, and a pressure control device. The interior of the tank body is separated into a water chamber and an air chamber by the rubber diaphragm; one side of the tank body has a water inlet communicating with the water chamber, and the other side of the tank body has an air inlet / outlet communicating with the air chamber; the air valve is installed on the air inlet / outlet; the pressure control device is installed on the tank body and communicates with the air chamber.
[0008] By adopting the above technical scheme, the beneficial effects of the utility model are:
[0009] The utility model introduces the liquid to be pressurized into the water chamber to push the rubber diaphragm. The rubber diaphragm moves to compress the gas in the air chamber, so that the compressed gas enters the pressure control device to monitor the start and stop of pressure control in real time, thus avoiding the long-term contact between the pressure control device and the liquid, ensuring the accuracy and improving the service life.
[0010] Further, the tank body has an internal thread interface communicated with the air chamber, and the pressure control device is threadedly connected to the internal thread interface or the pressure control device is installed on the internal thread interface through a reducing joint.
[0011] The beneficial effect of adopting the above further technical solution is that by providing an internal thread interface on the tank body, it can adapt to the thread joint of the pressure control device or cooperate with a reducing joint to realize the adaptable installation of various pressure control devices, improving the installation convenience.
[0012] Further, a filter screen is fixedly wrapped on the extension pipe inside the tank body where the internal thread interface is located.
[0013] The beneficial effect of adopting the above further technical solution is that it can prevent rust or sundries inside the tank body from entering the inner cavity of the pressure control device.
[0014] Further, the filter screen is fixed on the extension pipe through a clamp.
[0015] Further, the internal thread interface is a 4 - minute internal thread interface.
[0016] Further, the pressure control device includes a pressure switch and a pressure sensor. The pressure switch is threadedly connected to the internal thread interface or the pressure switch is installed on the internal thread interface through a reducing joint; the pressure sensor is electrically connected to the pressure switch.
[0017] Further, the water inlet is a 4 - minute external thread interface or a 3 - minute external thread interface.
[0018] Further, the tank body is made of stainless steel or iron or plastic or polymer material. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for description in the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.
[0020] Figure 1 The attached drawing is an overall structural schematic diagram of a diaphragm - type pneumatic water tank provided by the present utility model;
[0021] Figure 2 The accompanying drawing is a cross-sectional view of a diaphragm type pneumatic water tank provided by the present utility model;
[0022] Figure 3 The accompanying drawing is Figure 2 a schematic enlarged structure view of part A in Specific embodiments
[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0024] As Figures 1-3 shown, the embodiment of the present utility model discloses a diaphragm type pneumatic water tank, which includes a tank body 1, a rubber diaphragm 2, an air valve 3 and a pressure control device. The inside of the tank body 1 is separated into a water chamber and an air chamber by the rubber diaphragm 2; one side of the tank body 1 has a water inlet 11 communicating with the water chamber, and the other side of the tank body 1 has an air inlet / outlet communicating with the air chamber; the air valve 3 is installed on the air inlet / outlet, and the pressure control device is installed on the tank body 1 and communicates with the air chamber. The present utility model introduces the liquid to be pressurized into the water chamber to push the rubber diaphragm 2, and the movement of the rubber diaphragm 2 compresses the gas in the air chamber, so that the compressed gas enters the pressure control device to monitor the pressure control start and stop in real time, thereby avoiding the long-term contact between the pressure control device and the liquid, ensuring the accuracy and improving the service life.
[0025] Specifically, the tank body 1 has an internal thread interface 4 communicating with the air chamber. In this embodiment, the internal thread interface 4 is a 1 / 2" internal thread interface. The pressure control device is threadedly connected to the internal thread interface 4 or the pressure control device is installed on the internal thread interface 4 through a reducing joint, so as to be able to adapt to the thread joint of the pressure control device or cooperate with the reducing joint to realize the adaptable installation of various pressure control devices and improve the installation convenience.
[0026] In order to further optimize the technical solution of the present utility model, a filter screen 5 is fixedly wrapped on the extension pipe inside the tank body 1 where the internal thread interface 4 is located, so as to prevent rust or sundries inside the tank body 1 from entering the inner cavity of the pressure control device.
[0027] Specifically, the filter screen 5 is fixed on the extension pipe through a clamp 6 to ensure the stable fixation of the filter screen 5 and facilitate disassembly and replacement.
[0028] Specifically, the pressure control device includes a pressure switch and a pressure sensor. The pressure switch is connected to the internal thread interface thread 4 or the pressure switch is installed on the internal thread interface 4 through a reducing joint; the pressure sensor is electrically connected to the pressure switch.
[0029] Specifically, the water inlet 11 is a 4 - point external thread interface or a 3 - point internal thread interface.
[0030] Specifically, the tank body 1 is made of stainless steel, iron, plastic or polymer material.
[0031] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other. For the device disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple. For the relevant parts, reference can be made to the description in the method part.
[0032] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A diaphragm type pneumatic water tank, comprising a tank body, a rubber diaphragm, a gas valve and a pressure control device. The interior of the tank body is separated into a water chamber and a gas chamber by the rubber diaphragm; one side of the tank body has a water inlet communicated with the water chamber, and the other side of the tank body has an air inlet / outlet communicated with the gas chamber; the gas valve is installed on the air inlet / outlet, and is characterized in that, The pressure control device is installed on the tank body and is in communication with the air chamber.
2. The diaphragm type pneumatic water tank according to claim 1, characterized in that, The tank body has an internal thread interface communicating with the air chamber. The pressure control device is threadedly connected to the internal thread interface or the pressure control device is installed on the internal thread interface through a reducing joint.
3. A diaphragm type pneumatic water tank according to claim 2, characterized in that, A filter screen is fixedly wrapped on the extension pipe inside the tank body at the internal thread interface.
4. A diaphragm type pneumatic water tank according to claim 3, characterized in that, The filter screen is fixed on the extension pipe by a clamp.
5. A diaphragm type pneumatic water tank according to claim 2, characterized in that, The internal thread interface is a 1 / 2-inch internal thread interface.
6. A diaphragm type pneumatic water tank according to claim 2 or 5, characterized in that, The pressure control device includes a pressure switch and a pressure sensor. The pressure switch is threadedly connected to the internal thread interface or the pressure switch is installed on the internal thread interface through a reducing joint; the pressure sensor is electrically connected to the pressure switch.
7. A diaphragm type pneumatic water tank according to claim 1, characterized in that, The water inlet is a 1 / 2-inch external thread interface or a 3 / 4-inch internal thread interface.
8. A diaphragm type pneumatic water tank according to claim 1, characterized in that, The tank body is made of stainless steel or iron or plastic or polymer material.