High-precision temperature detection pressure reducer

Abstract

The utility model discloses a high-precision temperature detection pressure reducer, and belongs to the technical field of gas pressure reducing devices. Comprising a base body and a cover body which are connected to define a low-pressure chamber, the base body is further provided with a high-pressure chamber, a valve cavity and a valve element, the valve element is arranged in the valve cavity, and the high-pressure chamber is communicated with the low-pressure chamber through the valve cavity; the heating pipe is connected with the base body and is used for heating the base body; and the temperature controller is connected with the heating pipe and mounted on the base body, and the temperature controller is used for monitoring the real-time temperature of the base body and controlling the heating effect of the heating pipe. The base body is heated through the heating pipe, meanwhile, the real-time temperature of the base body is monitored through the temperature controller, and the heating effect of the heating pipe is controlled, so that the internal temperature of the base body can be kept within a proper range all the time, the situation that the temperature of part of gas is reduced during pressure reduction is avoided, and the stability and smoothness of gas flowing are guaranteed; and the precision and efficiency of the decompression process are ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas pressure reducing devices, and particularly relates to a high-precision temperature detection pressure reducer. Background Art

[0002] A pressure reducer is a regulating device that reduces high-pressure gas to low-pressure gas and keeps the pressure and flow rate of the output gas stable. Since the pressure in the gas cylinder is relatively high, while the pressure required for gas welding and gas cutting is relatively low, a pressure reducer is needed to reduce the high-pressure gas stored in the gas cylinder to low-pressure gas, and it should be ensured that the required working pressure remains stable throughout.

[0003] The current pressure reducer cannot detect and adjust the temperature inside the base body. Sometimes, the pressure reducer used for gas welding needs to control the temperature inside the base body. For example, when the gas used is carbon dioxide (CO2), when the CO2 gas is decompressed from a high-pressure state to a low-pressure state, adiabatic expansion will occur, which will cause a significant temperature drop. The temperature drop may cause the internal components of the pressure reducer to freeze, thus hindering the normal flow of gas. Summary of the Utility Model

[0004] The utility model aims at the above problems existing in the prior art, and provides a high-precision temperature detection pressure reducer that can detect and adjust the temperature of the base body.

[0005] The utility model can be realized by the following technical solutions:

[0006] A high-precision temperature detection pressure reducer, comprising:

[0007] A base body and a cover body, which are connected and surrounded to form a low-pressure chamber. The base body is also provided with a high-pressure chamber, a valve chamber and a valve core. The valve core is arranged in the valve chamber, and the high-pressure chamber is communicated with the low-pressure chamber through the valve chamber;

[0008] A heating pipe, which is connected to the base body and used to heat it;

[0009] A thermostat, which is connected to the heating pipe and installed on the base body. The thermostat is used to monitor the real-time temperature of the base body and control the heating effect of the heating pipe.

[0010] As a further improvement of the utility model, the thermostat monitors the real-time temperature of the base body through a temperature sensor, wherein,

[0011] When the temperature of the base body is lower than the preset value, the thermostat controls the heating pipe to heat the base body;

[0012] When the temperature of the base body is higher than the preset value, the thermostat controls the heating pipe to reduce the heating temperature or stop working.

[0013] As a further improvement of the present utility model, it further includes a rear cover housing, which is connected to the base body, and the heating pipe and the temperature controller are both arranged inside the rear cover housing.

[0014] As a further improvement of the present utility model, it further includes a diaphragm assembly, which is arranged between the base body and the cover body. The cover body is also provided with an adjusting screw and a first spring. Two ends of the first spring are respectively connected to the adjusting screw and the diaphragm assembly. By rotating the adjusting screw, the first spring is compressed and pushes the diaphragm assembly downward to adjust the internal pressure of the low-pressure chamber.

[0015] As a further improvement of the present utility model, a plug is installed at an opening of the valve cavity close to the low-pressure chamber. The valve core is arranged inside the plug, and an end of the valve core passes through the plug and extends into the low-pressure chamber and abuts against the diaphragm assembly.

[0016] As a further improvement of the present utility model, a second spring is further arranged inside the valve cavity. Two ends of the second spring are respectively abutted against the valve core and the inner wall of the base body and are used for pushing the valve core towards the low-pressure chamber.

[0017] As a further improvement of the present utility model, after the diaphragm assembly pushes the valve core downward, a channel opening between the valve core and the plug is opened, and the gas entering the high-pressure chamber enters the low-pressure chamber through the channel opening.

[0018] As a further improvement of the present utility model, it further includes an air inlet joint and an air outlet joint. At the same time, the base body is also provided with an air inlet channel and an air outlet channel. Among them,

[0019] The air inlet joint is installed at the air inlet channel, and the air inlet channel is communicated with the high-pressure chamber;

[0020] The air outlet joint is installed at the air outlet channel, and the high-pressure chamber is communicated with the air outlet channel.

[0021] As a further improvement of the present utility model, the base body is also provided with a pressure gauge for measuring the pressure of the low-pressure chamber.

[0022] As a further improvement of the present utility model, a flow meter is further installed on the air outlet joint for monitoring and displaying the output flow rate of the gas.

[0023] Compared with the prior art, the present utility model has the following beneficial effects:

[0024] The matrix is heated by a heating pipe, and at the same time, the real-time temperature of the matrix is monitored by a thermostat and the heating effect of the heating pipe is controlled, so that the internal temperature of the matrix can always be maintained within a suitable range, avoiding the situation that the temperature decreases when some gases are decompressed, ensuring the stability and smoothness of gas flow, and ensuring the accuracy and efficiency of the decompression process. Brief Description of the Drawings

[0025] Figure 1 is a cross-sectional view of the high-precision temperature detection pressure reducer of the present utility model;

[0026] Figure 2 is of the present utility model Figure 1 partial enlarged view at A in;

[0027] Figure 3 is a schematic structural view of the high-precision temperature detection pressure reducer of the present utility model.

[0028] In the figure, 100, matrix; 110, low-pressure chamber; 120, high-pressure chamber; 130, valve chamber; 131, valve core; 132, plug; 133, channel opening; 134, second spring; 140, diaphragm assembly; 150, inlet joint; 151, inlet channel; 160, outlet joint; 161, outlet channel;

[0029] 200, cover body; 210, adjusting screw; 220, first spring;

[0030] 300, heating pipe; 310, thermostat; 320, rear housing;

[0031] 400, pressure gauge;

[0032] 500, flow meter. Detailed Embodiment

[0033] The following are specific embodiments of the present utility model and in combination with the drawings, the technical methods of the present utility model are further described, but the present utility model is not limited to these embodiments.

[0034] As Figures 1-3 shown, the present utility model provides a high-precision temperature detection pressure reducer, including:

[0035] A matrix 100 and a cover body 200, after being connected, enclose to form a low-pressure chamber 110. The matrix 100 is also provided with a high-pressure chamber 120, a valve chamber 130 and a valve core 131. The valve core 131 is arranged in the valve chamber 130, and the high-pressure chamber 120 is communicated with the low-pressure chamber 110 through the valve chamber 130;

[0036] The heating tube 300 is connected to the base body 100 and is used to heat it, so as to increase the internal temperature of the base body 100, avoid the situation that the temperature of some gases decreases during decompression, and thus ensure the stability and smoothness of gas flow;

[0037] The thermostat 310 is connected to the heating tube 300 and installed on the base body 100. The thermostat 310 is used to monitor the real-time temperature of the base body 100 and control the heating effect of the heating tube 300, so that the internal temperature of the base body 100 can always be maintained within a suitable range, ensuring the accuracy and efficiency of the decompression process.

[0038] Through this design, the pressure reducer can maintain good performance in different working environments, especially when dealing with gases that are easily affected by temperature, such as carbon dioxide (CO2). Such a design ensures that the gas can flow smoothly, and at the same time improves the reliability and service life of the pressure reducer.

[0039] Preferably, the thermostat 310 monitors the real-time temperature of the base body 100 through a temperature sensor, where

[0040] When the temperature of the base body 100 is lower than the preset value, the thermostat 310 will receive the signal sent by the temperature sensor and control the heating tube 300 to start heating to raise the temperature of the base body 100 to the preset value;

[0041] When the temperature of the base body 100 is greater than the preset value, the thermostat 310 will receive the feedback signal from the temperature sensor again, and then control the heating tube 300 to reduce the heating power or stop heating completely to maintain the stability of the temperature of the base body 100.

[0042] This closed-loop control system ensures that the internal temperature of the pressure reducer can be accurately controlled within the required range, thus avoiding adverse effects caused by temperature changes, such as changes in gas fluidity or freezing and other problems, and achieving the purpose of ensuring that the gas can flow smoothly.

[0043] Preferably, it further includes a rear cover 320, which is connected to the base body 100, and the heating tube 300 and the thermostat 310 are both arranged inside the rear cover 320, thereby playing a protective role for the heating tube 300 and the thermostat 310.

[0044] Preferably, it further includes a diaphragm assembly 140, which is arranged between the base body 100 and the cover body 200.

[0045] Preferably, the cover body 200 is further provided with an adjusting screw 210 and a first spring 220. The two ends of the first spring 220 are respectively connected to the adjusting screw 210 and the diaphragm assembly 140. By rotating the adjusting screw 210, the first spring 220 is compressed and pushes the diaphragm assembly 140 to press down, so as to adjust the internal pressure of the low-pressure chamber 110.

[0046] Preferably, a plug 132 is installed at the opening of the valve chamber 130 close to the low-pressure chamber 110. The valve core 131 is arranged inside the plug 132, and the end of the valve core 131 passes through the plug 132 and extends into the low-pressure chamber 110 to abut against the diaphragm assembly 140. Thus, the valve core 131 can be pushed to move by pressing down the diaphragm assembly 140. After the diaphragm assembly 140 pushes the valve core 131 down, the channel opening 133 between the valve core 131 and the plug 132 is opened, and the gas entering the high-pressure chamber 120 can enter the low-pressure chamber 110 through the channel opening 133.

[0047] Preferably, a second spring 134 is further arranged in the valve chamber 130. The two ends of the second spring 134 respectively abut against the valve core 131 and the inner wall of the base body 100 and are used to push the valve core 131 towards the low-pressure chamber 110. When the adjusting screw 210 is rotated to press down the diaphragm assembly 140 against the valve core 131, the second spring 134 is in a compressed state. Once the adjusting screw 210 resets upwards, the valve core 131 will move upwards under the action of the second spring 134 to reset and close the channel opening 133 between the valve core 131 and the plug 132.

[0048] Preferably, an air inlet joint 150 and an air outlet joint 160 are further included. Meanwhile, the base body 100 is also provided with an air inlet channel 151 and an air outlet channel 161. Among them,

[0049] The air inlet joint 150 is installed at the air inlet channel 151, and the air inlet channel 151 is communicated with the high-pressure chamber 120;

[0050] The air outlet joint 160 is installed at the air outlet channel 161, and the high-pressure chamber 120 is communicated with the air outlet channel 161.

[0051] Specifically, after the high-pressure gas flows into the high-pressure chamber 120 from the air inlet joint 150, it enters the low-pressure chamber 110 through the channel opening 133 between the valve core 131 and the plug 132. During this process, the decompression of the gas is completed, and the decompressed gas is discharged outwards through the air outlet channel 161 and the air outlet joint 160 in sequence.

[0052] Preferably, the base body 100 is further provided with a pressure gauge 400 for measuring the pressure in the low-pressure chamber 110, that is, the pressure of the finally output gas. The operator can timely adjust the adjusting screw 210 according to the pressure value displayed on the pressure gauge 400, so as to change the pressure value of the output gas until it reaches the preset value.

[0053] Preferably, a flow meter 500 is further installed on the air outlet joint 160 for monitoring and displaying the output flow rate of the gas, which is convenient for the operator to adjust the size of the output flow rate.

[0054] The technical means disclosed by the solution of the present utility model are not limited to those disclosed by the above technical means, but also include technical solutions composed of any combination of the above technical features. The above are the specific implementation manners of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present utility model.

[0055] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If this specific posture changes, then the directional indications will change accordingly.

[0056] In addition, in the present utility model, descriptions such as "first", "second", "one", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0057] In the present utility model, unless otherwise clearly specified and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0058] In addition, the technical solutions between various embodiments of the present utility model can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

Claims

1. A high-precision temperature detection pressure reducer, characterized in that: include: The base body and the cover body are connected to form a low-pressure chamber. The base body is also provided with a high-pressure chamber, a valve cavity and a valve core. The valve core is arranged in the valve cavity. The high-pressure chamber is connected with the low-pressure chamber through the valve cavity. A heating tube connected to the substrate and used to heat the substrate; A temperature controller is connected to the heating tube and installed on the substrate. The temperature controller is used to monitor the real-time temperature of the substrate and control the heating effect of the heating tube.

2. A high-precision temperature detection pressure reducer according to claim 1, characterized in that: The temperature controller monitors the real-time temperature of the substrate through a temperature sensor, wherein: When the temperature of the substrate is lower than a preset value, the temperature controller controls the heating tube to heat the substrate; When the temperature of the substrate is greater than a preset value, the temperature controller controls the heating tube to lower the heating temperature or stop working.

3. A high-precision temperature detection pressure reducer according to claim 1, characterized in that: It also includes a rear cover shell, which is connected to the base body, and the heating tube and the temperature controller are both arranged in the rear cover shell.

4. A high-precision temperature detection pressure reducer according to claim 1, characterized in that: It also includes a diaphragm assembly, which is arranged between the base and the cover body. The cover body is also provided with an adjusting screw and a first spring. The two ends of the first spring are respectively connected to the adjusting screw and the diaphragm assembly. By rotating the adjusting screw, the first spring compresses and pushes the diaphragm assembly downward to adjust the internal pressure of the low-pressure chamber.

5. A high-precision temperature detection pressure reducer according to claim 4, characterized in that: A screw plug is installed at the opening of the valve cavity close to the low-pressure chamber, the valve core is arranged in the screw plug, and the end of the valve core passes through the screw plug and extends into the low-pressure chamber and abuts against the diaphragm assembly.

6. A high-precision temperature detection pressure reducer according to claim 5, characterized in that: A second spring is also provided in the valve cavity, and two ends of the second spring are respectively in contact with the valve core and the inner wall of the base and are used to push the valve core toward the low-pressure chamber.

7. A high-precision temperature detection pressure reducer according to claim 6, characterized in that: When the diaphragm assembly presses the valve core downward, the passage opening between the valve core and the screw plug is opened, and the gas entering the high-pressure chamber enters the low-pressure chamber through the passage opening.

8. A high-precision temperature detection pressure reducer according to claim 1, characterized in that: It also includes an air inlet connector and an air outlet connector, and the base body is also provided with an air inlet channel and an air outlet channel, wherein: The air intake joint is installed at the air intake passage, and the air intake passage is communicated with the high pressure chamber; The air outlet joint is installed at the air outlet channel, and the high pressure chamber is communicated with the air outlet channel.

9. A high-precision temperature detection pressure reducer according to claim 1, characterized in that: The base body is also provided with a pressure gauge for measuring the pressure of the low-pressure chamber.

10. A high-precision temperature detection pressure reducer according to claim 8, characterized in that: A flow meter is also installed on the gas outlet connector to monitor and display the output flow of the gas.

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