Anti-vibration pressure measuring device for liquid chlorine ice machine

Abstract

The utility model relates to a kind of anti-vibration pressure measuring devices of liquid chlorine ice machine, comprising: ice machine body, control system, pressure guide pipe, pressure transmitter and pressure sensor.The one end of pressure guide pipe is connected with the pressure source interface connection of ice machine body.Pressure transmitter's input end is connected with the other end of pressure guide pipe.Pressure sensor's input end is connected in the pressure output interface of pressure transmitter;Pressure sensor's signal output end is connected with control system signal.The utility model provides the anti-vibration pressure measuring devices of liquid chlorine ice machine, in the pressure sensor of relatively stationary environment, static or quasi-static pressure reflecting the real running state of equipment can be perceived, to output stable, reliable electric signal to control system;Solved the technical problem of pressure signal distortion under strong vibration environment.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, and in particular to a vibration-resistant pressure measuring device for a liquid chlorine ice machine. Background Technology

[0002] Liquid chlorine-fluorinated ice machines are crucial refrigeration equipment in industries such as chemical, pharmaceutical, and food processing, and their stable operation directly affects production safety and efficiency. The ice machine's control system ensures equipment safety by monitoring key parameters such as exhaust pressure, oil pressure, and suction pressure in real time. Currently, the common practice is to directly install pressure sensors or pressure switches on the compressor or related piping interfaces.

[0003] During startup and operation, the ice machine experiences severe mechanical vibrations from its motor and compressor. These vibrations are directly transmitted to the pressure sensors mounted on the machine, causing abnormal responses from their internal sensitive components. This results in the output of high-frequency, rapidly fluctuating electrical signals. The control system misinterprets this distorted signal as a genuine pressure anomaly (such as low oil pressure or high exhaust pressure), triggering protection mechanisms and causing unexpected, non-faulty shutdowns. Such shutdowns not only disrupt production continuity but also damage the equipment itself due to frequent start-ups and shutdowns. Utility Model Content

[0004] This invention addresses the technical problem in the prior art where vibrations from liquid chlorine ice machines are directly transmitted to the pressure sensor installed on the machine body, causing abnormal responses in its internal sensitive components. It provides a vibration-resistant pressure measurement device for liquid chlorine ice machines.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A vibration-resistant pressure measuring device for a liquid chlorine ice machine includes: an ice machine body, a control system, a pressure inlet conduit, a pressure transmitter, and a pressure sensor; One end of the pressure-inducing conduit is connected to the pressure source interface of the ice machine body; The input end of the pressure transmitter is connected to the other end of the pressure-feeding conduit; The input terminal of the pressure sensor is connected to the pressure output interface of the pressure transmitter; the signal output terminal of the pressure sensor is connected to the signal of the control system.

[0006] Furthermore, a needle valve is also provided on the pipeline between the pressure-feeding conduit and the pressure transmitter.

[0007] Furthermore, the pressure-guiding conduit has at least one curved section in its laying path from one end connected to the ice machine body to the other end connected to the pressure transmitter.

[0008] Furthermore, the curved section of the pressure-applying conduit is one or more U-shaped tubes.

[0009] Furthermore, the pressure transmitter is provided with a buffer cavity, the volume of which is greater than or equal to five times the volume of the pressure-feeding conduit.

[0010] Furthermore, it also includes: a mounting bracket; the pressure transmitter is fixedly mounted on a structure independent of the ice machine body via the mounting bracket.

[0011] Furthermore, the pressure-guiding conduit is a stainless steel corrugated pipe.

[0012] Furthermore, the pressure output interface of the pressure transmitter has an internal thread, and the input end of the pressure sensor has a matching external thread. The input end of the pressure sensor is threadedly connected to the pressure output interface of the pressure transmitter.

[0013] Furthermore, the curved section of the pressure-guiding conduit is fitted with an arc-shaped protective plate.

[0014] Compared with the prior art, the anti-vibration pressure measuring device for the liquid chlorine ice machine provided by this utility model has at least the following beneficial effects or advantages: This invention provides a vibration-resistant pressure measurement device for a liquid chlorine ice machine. It utilizes a pressure-sensing conduit to physically separate the vibration source (ice machine body) from the pressure sensor, cutting off the path of mechanical vibration directly transmitted to the pressure sensor via a rigid connection. The pressure transmitter provides a stable cavity for the pressure medium, forming a fluid damping system with the pressure-sensing conduit. This system attenuates and smooths high-frequency pressure pulses caused by vibration, thus suppressing interference at the signal source. The pressure sensor, operating in a relatively static environment, can sense the static or quasi-static pressure reflecting the actual operating state of the equipment, thereby outputting a stable and reliable electrical signal to the control system. This solves the technical problem of pressure signal distortion under strong vibration conditions. Attached Figure Description

[0015] Figure 1 A schematic diagram of the anti-vibration pressure measuring device for a liquid chlorine ice machine provided in this embodiment of the utility model; Figure 2 A schematic diagram of the pressure transmitter and mounting bracket provided in an embodiment of this utility model. Detailed Implementation

[0016] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0018] It is understood that spatial relation terms such as "below," "under," "below," "below," "above," "above," etc., can be used here to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as "below" or "below" of the other element or feature will be oriented "above" the other element or feature. Therefore, the exemplary terms "below" and "below" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0019] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediary element. In the following embodiments, "connection" should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have the transmission of electrical signals or data between them.

[0020] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0021] See Figure 1 and Figure 2 This utility model embodiment provides a vibration-resistant pressure measuring device for a liquid chlorine ice machine, including: an ice machine body 1, a pressure inlet conduit 2, a needle valve 3, a pressure transmitter 4, a pressure sensor 5, a control system 6, and a mounting bracket 7. The connections and positional relationships of each component are as follows: A metal pressure-inducing conduit 2, specifically a stainless steel corrugated pipe, is connected to the pressure source interface of the ice machine body 1. During installation, the pressure-inducing conduit 2 is wound into one or more U-shaped sections to enhance its vibration absorption capacity. To ensure the stability of the bent section and prevent excessive deformation, an arc-shaped protective plate can be added to the outside of the bent section for limiting and protection.

[0022] The other end of the pressure-sensing conduit 2 is connected to the inlet of a needle valve 3, and the outlet of the needle valve 3 is connected to the inlet of the pressure transmitter 4. The needle valve 3 is used to fine-tune the flow rate of the medium and acts as an auxiliary damping device. The pressure transmitter 4 is mounted on a stable structure away from the ice machine 1 via a mounting bracket 7, such as on a wall or concrete pillar in the workshop, thereby achieving vibration isolation.

[0023] The pressure transmitter 4 is equipped with a buffer chamber, the volume of which is greater than or equal to five times the volume of the pressure-feeding conduit 2. This buffer chamber buffers pressure pulsations, thereby stabilizing the medium pressure. The pressure transmitter 4 has a pressure output interface with an internal thread. The pressure sensor 5 is directly screwed onto this interface via its matching external thread at its input end. This threaded connection method results in a compact structure and reduces potential leakage points. The signal output end of the pressure sensor 5 is connected to the control system 6 via a cable to transmit the pressure signal.

[0024] See Figure 1 The vibration-resistant pressure measuring device for the liquid chlorine ice machine provided in this embodiment operates as follows: The pressure medium (gaseous refrigerant or lubricating oil) inside the ice machine body 1 is led out through the pressure-sensing conduit 2. During this process, mechanical vibration is significantly attenuated. The medium flows through the needle valve 3 and then enters the pressure transmitter 4. The buffer chamber inside the pressure transmitter 4 further stabilizes the pressure. The actual pressure value acts on the pressure-sensing diaphragm of the pressure sensor 5, and the pressure sensor 5 transmits an accurate signal to the control system 6, thereby completing accurate pressure monitoring.

[0025] The anti-vibration pressure measuring device for the liquid chlorine ice machine provided in this embodiment of the invention has at least the following beneficial effects or advantages: The anti-vibration pressure measuring device for a liquid chlorine ice machine provided in this embodiment of the invention uses a pressure-sensing conduit to physically separate the vibration source (ice machine body) from the pressure sensor, effectively cutting off the path of mechanical vibration directly transmitted to the pressure sensor through a rigid connection. The pressure transmitter provides a stable cavity for the pressure medium, which, together with the pressure-sensing conduit, constitutes a fluid damping system to attenuate and smooth high-frequency pressure pulses caused by vibration, thereby suppressing interference at the signal source. The pressure sensor, located in a relatively static environment, can sense the static or quasi-static pressure reflecting the true operating state of the equipment, thus outputting a stable and reliable electrical signal to the control system; this solves the technical problem of pressure signal distortion under strong vibration conditions.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 vibration-resistant pressure measuring device for a liquid chlorine ice machine, characterized in that: include: Ice machine body (1), control system (6), pressure conduit (2), pressure transmitter (4) and pressure sensor (5); One end of the pressure-inducing conduit (2) is connected to the pressure source interface of the ice machine body (1); The input end of the pressure transmitter (4) is connected to the other end of the pressure-feeding conduit (2); The input end of the pressure sensor (5) is connected to the pressure output interface of the pressure transmitter (4); the signal output end of the pressure sensor (5) is connected to the signal of the control system (6).

2. The anti-vibration pressure measuring device for the liquid chlorine ice machine according to claim 1, characterized in that: A needle valve (3) is also provided on the pipeline between the pressure-sensing conduit (2) and the pressure transmitter (4).

3. The anti-vibration pressure measuring device for a liquid chlorine ice machine according to claim 1 or 2, characterized in that: The pressure conduit (2) has at least one curved section in its laying path from one end connected to the ice machine body (1) to the other end connected to the pressure transmitter (4).

4. The anti-vibration pressure measuring device for the liquid chlorine ice machine according to claim 3, characterized in that: The curved section of the pressure-inducing conduit (2) is one or more U-shaped tubes.

5. The anti-vibration pressure measuring device for a liquid chlorine ice machine according to claim 1, characterized in that: The pressure transmitter (4) is provided with a buffer cavity, the volume of which is greater than or equal to five times the volume of the pressure-feeding conduit (2).

6. The anti-vibration pressure measuring device for the liquid chlorine ice machine according to claim 1, characterized in that: Also includes: Mounting bracket (7); the pressure transmitter (4) is fixedly mounted on a structure independent of the ice machine body (1) via the mounting bracket (7).

7. The anti-vibration pressure measuring device for a liquid chlorine ice machine according to claim 1, characterized in that: The pressure-inducing conduit (2) is a stainless steel corrugated pipe.

8. The anti-vibration pressure measuring device for a liquid chlorine ice machine according to claim 1, characterized in that: The pressure output interface of the pressure transmitter (4) has an internal thread, and the input end of the pressure sensor (5) has a matching external thread. The input end of the pressure sensor (5) is threadedly connected to the pressure output interface of the pressure transmitter (4).

9. The anti-vibration pressure measuring device for the liquid chlorine ice machine according to claim 3, characterized in that: The curved section of the pressure-inducing conduit (2) is fitted with an arc-shaped protective plate.

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