Pressure regulating valve with temperature compensation function

Abstract

The utility model relates to the technical field of pressure regulating valves, and discloses a pressure regulating valve with a temperature compensation function, which comprises a valve body, a regulating sleeve and flanges, the regulating sleeve is arranged at the top of the valve body, a temperature sensor is arranged in the valve body, the temperature sensor is electrically connected with a microcontroller, the flanges are arranged at two ends of the valve body, and the microcontroller is electrically connected with the regulating sleeve. A connecting assembly is arranged in the valve body, an inner layer pipe is arranged in the connecting assembly, a fixed connection column is fixedly connected to the inner wall of the inner layer pipe, and heating strips are arranged on the side wall of the fixed connection column. When the temperature sensor senses that the temperature of fluid flowing into the pressure regulating valve is low, the heating strips can be controlled by the microcontroller to heat the fluid, at the moment, the fluid can be heated more evenly through the transverse heating strips, and the temperature compensation effect on the fluid is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of pressure regulating valve technology, specifically a pressure regulating valve with temperature compensation function. Background Technology

[0002] Pressure regulating valves, also known as self-regulating balancing valves, flow control valves, flow controllers, dynamic balancing valves, and flow balancing valves, are intuitive and simple flow regulation and control devices. In pipeline networks, flow regulating valves allow for direct flow setting based on design specifications. Under the action of water, the valve automatically eliminates flow deviations caused by residual head and pressure fluctuations in the pipeline, maintaining the set flow rate regardless of system pressure changes. These functions enable pipeline flow regulation to be completed in one step, transforming network adjustment into simple flow distribution and effectively solving hydraulic imbalances in the pipeline network. Common pressure regulating valves can control fluids with low corrosiveness, such as water and oil. However, in actual use, when impurities exist in the fluid and temperature compensation is required, fluid filtration and heating are necessary.

[0003] The prior art patent document CN219062563U provides a pressure regulating valve with temperature compensation function. It features vertically arranged channels on the valve core, surrounded by branch channels. When the required fluid pressure at the outlet is reduced, a drive mechanism rotates a lead screw sleeve, causing the lead screw to move downwards. This reduces the gap between the valve core and the regulating valve body, thus decreasing the outlet pressure. If impurities in the fluid clog the gap between the valve core and the regulating valve body, the fluid can still enter the outlet through the vertical and branch channels, preventing complete blockage of the valve core and improving the service life of the pressure regulating valve. While this device offers many advantages, it still has the following problems: The device internally includes a heating unit and a temperature sensor for temperature compensation; however, the contact area between the heating unit and the fluid is small, resulting in poor heating performance and affecting the temperature compensation effect. Therefore, we propose a pressure regulating valve with temperature compensation function. Utility Model Content

[0004] The purpose of this invention is to provide a pressure regulating valve with temperature compensation function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pressure regulating valve with temperature compensation function, comprising a valve body, an adjusting sleeve, and a flange. The adjusting sleeve is disposed at the top of the valve body. A temperature sensor is disposed inside the valve body and electrically connected to a microcontroller. The flange is disposed at both ends of the valve body. A connecting assembly is disposed inside the valve body. An inner tube is disposed inside the connecting assembly. A fixing post is fixed to the inner wall of the inner tube. A heating strip is disposed on the side wall of the fixing post, and an arc-shaped surface is disposed on the side wall of the fixing post.

[0006] Preferably, a baffle is fixedly connected to the side wall of the heating strip, and the baffle is fixedly connected to the inner wall of the inner tube.

[0007] Preferably, the side wall of the baffle is provided with a filter screen, which is disposed on the inner wall of the inner tube.

[0008] Preferably, the filter screen has a mating hole on its side wall, and a gasket is provided inside the mating hole.

[0009] Preferably, a mounting base is fixedly attached to the top of the connecting assembly, and the temperature sensor is fixedly attached to the top of the mounting base.

[0010] Preferably, the heating strip has a rubber outer skin inside, and an electric heating wire is disposed inside the rubber outer skin.

[0011] Preferably, a retaining ring is fixed to the outer wall of the filter screen, and the retaining ring is fixed to the inside of the inner tube.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model has multiple horizontal heating strips inside the connecting component. The heating strips are fixed to the inner wall of the inner tube by the fixing post. When the temperature sensor detects that the temperature of the fluid flowing into the pressure regulating valve is low, the microcontroller controls the heating strips to heat the fluid. At this time, multiple horizontal heating strips can make the heating of the fluid more uniform, which is beneficial to the temperature compensation effect of the fluid.

[0014] 2. In this utility model, when the fluid flows through the filter screen, the filter screen is provided with mating holes with gaskets. The filter screen fits into the outside of the heating strip through the mating holes, thereby limiting and supporting the position of the heating strip, making the heating strip more stable when subjected to fluid impact, and at the same time realizing the filtration operation of the fluid. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the connecting component of this utility model;

[0017] Figure 3 This is a schematic diagram of the heating strip structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the filter structure of this utility model.

[0019] In the diagram: 100, valve body; 110, regulating sleeve; 111, flange; 112, temperature sensor; 120, connecting assembly; 121, fixed base; 122, microcontroller; 123, inner tube; 130, fixed post; 131, arc-shaped surface; 132, heating strip; 133, rubber outer skin; 134, electric heating wire; 135, baffle; 140, filter screen; 141, retaining ring; 142, mating hole; 143, gasket. Detailed Implementation

[0020] 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.

[0021] Example

[0022] Please see Figures 1-4 The diagram illustrates a pressure regulating valve with temperature compensation, comprising a valve body 100, an adjusting sleeve 110, and a flange 111. The adjusting sleeve 110 is located at the top of the valve body 100. A temperature sensor 112 is installed inside the valve body 100. The temperature sensor 112 uses a commercially available thermocouple temperature sensor, typically consisting of a junction welded from two different metal materials. When the temperature of the junction changes, a voltage signal proportional to the temperature difference is generated. This voltage signal can be measured and converted into a temperature value by a microcontroller 122, which then controls the heating strip 132 to heat the valve. The temperature sensor 112 is electrically connected to the microcontroller... The controller 122 uses a commercially available programmable PLC control chip. It is powered by an external power supply connected to a power cord, and also powers the temperature sensor 112 and the heating strip 132. The flange 111 is located at both ends of the valve body 100. The valve body 100 is equipped with a connecting assembly 120. The connecting assembly 120 is tightly welded with an inner tube 123. The inner wall of the inner tube 123 is tightly welded with a fixing post 130. The side wall of the fixing post 130 is equipped with a heating strip 132 that is electrically connected to the microcontroller 122. The outer wall of the heating strip 132 is equipped with a shell made of copper sheet. The side wall of the fixing post 130 is equipped with an arc-shaped surface 131.

[0023] Specifically, a stop post 135 is bolted to the side wall of the heating strip 132, and the stop post 135 is bolted to the inner wall of the inner tube 123.

[0024] Furthermore, a filter screen 140 is provided on the side wall of the baffle 135. The filter screen 140 is made of commonly available stainless steel filter screen and is located on the inner wall of the inner tube 123.

[0025] Furthermore, the filter screen 140 has a mating hole 142 on its side wall, and a gasket 143 is provided inside the mating hole 142.

[0026] Furthermore, a mounting base 121 is fixedly attached to the top of the connecting assembly 120, and the temperature sensor 112 is fixedly attached to the top of the mounting base 121.

[0027] It is worth noting that the heating strip 132 has a rubber outer skin 133 inside, which is made of commercially available heat-resistant silicone. The rubber outer skin 133 has an electric heating wire 134 inside, which is composed of commercially available nickel-chromium alloy wire and thermocouple. When the heating strip 132 is powered on, the nickel-chromium alloy wire generates heat, and at the same time, the thermocouple is used to detect the heating temperature of the nickel-chromium alloy wire and cooperate with the microcontroller 122 to adjust the temperature.

[0028] It is worth noting that a retaining ring 141 is tightly welded to the outer wall of the filter screen 140, and the retaining ring 141 is tightly welded to the inside of the inner tube 123.

[0029] In addition, for details on the structural arrangement of the valve body 100, the regulating sleeve 110 and the flange 111 and their cooperation to achieve fluid control, please refer to the utility model patent with temperature compensation function authorized announcement number CN219062563U, which has been omitted here. The circuits, electronic components and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated. The content protected by this utility model does not involve improvements to the internal structure and method.

[0030] Working principle: Multiple horizontal heating strips 132 are arranged inside the connecting component 120. The heating strips 132 are fixed to the inner wall of the inner tube 123 through the fixing post 130. When the temperature sensor 112 senses that the temperature of the fluid flowing into the pressure regulating valve is low, the microcontroller 122 controls the heating strips 132 to heat the fluid. At this time, multiple horizontal heating strips 132 can make the heating of the fluid more uniform, which is beneficial to the temperature compensation effect of the fluid. When the fluid flows through the filter screen 140, the filter screen 140 is provided with mating holes 142 with gaskets 143. The filter screen 140 fits the outside of the heating strips 132 through the mating holes 142, thereby limiting and supporting the position of the heating strips 132, making the heating strips 132 more stable when subjected to fluid impact, and at the same time realizing the filtration operation of the fluid.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] 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 pressure regulating valve with temperature compensation function, comprising a valve body (100), a regulating sleeve (110), and a flange (111), characterized in that: The regulating sleeve (110) is located at the top of the valve body (100). A temperature sensor (112) is located inside the valve body (100). The temperature sensor (112) is electrically connected to a microcontroller (122). The flange (111) is located at both ends of the valve body (100). A connecting assembly (120) is located inside the valve body (100). An inner tube (123) is located inside the connecting assembly (120). A fixing post (130) is fixed to the inner wall of the inner tube (123). A heating strip (132) is located on the side wall of the fixing post (130). An arc-shaped surface (131) is located on the side wall of the fixing post (130).

2. A pressure regulating valve with temperature compensation function according to claim 1, characterized in that: A baffle (135) is fixedly connected to the side wall of the heating strip (132), and the baffle (135) is fixedly connected to the inner wall of the inner tube (123).

3. A pressure regulating valve with temperature compensation function according to claim 2, characterized in that: The side wall of the baffle (135) is provided with a filter screen (140), which is located on the inner wall of the inner tube (123).

4. A pressure regulating valve with temperature compensation function according to claim 3, characterized in that: The filter screen (140) has a mating hole (142) on its side wall, and a gasket (143) is provided inside the mating hole (142).

5. A pressure regulating valve with temperature compensation function according to claim 1, characterized in that: The top of the connecting assembly (120) is fixedly connected to a mounting base (121), and the temperature sensor (112) is fixedly connected to the top of the mounting base (121).

6. A pressure regulating valve with temperature compensation function according to claim 1, characterized in that: The heating strip (132) is provided with a rubber outer skin (133), and an electric heating wire (134) is provided inside the rubber outer skin (133).

7. A pressure regulating valve with temperature compensation function according to claim 3, characterized in that: A fixing ring (141) is fixed to the outer wall of the filter screen (140), and the fixing ring (141) is fixed to the inside of the inner tube (123).

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