Instrument steam heat tracing device

Abstract

The utility model discloses an instrument steam heat tracing device, and belongs to the technical field of chemical production. An instrument steam heat tracing device comprises a controller, a high-pressure steam valve, a low-pressure steam valve, an air inlet pipe, a heat tracing header pipe, heat tracing branch pipes, a temperature sensor, a recovery pipe, an outer pipe valve, an inner pipe valve and a heat energy recovery module. A wireless communication module is arranged in the controller, and the information of the environment temperature can be obtained through the wireless communication module; the input end of the air inlet pipe is provided with two branch pipes, and the high-pressure steam valve and the low-pressure steam valve are installed on the two branch pipes respectively. Wherein steam of 5kg / cm < 2 > is introduced into the high-pressure steam valve; and 2 kg / cm < 2 > steam is introduced into the low-pressure steam valve. The controller automatically controls the high-pressure steam valve and the low-pressure steam valve to be opened and closed based on the obtained environment temperature information. When the environment temperature is above DEG C, the low-pressure steam valve is automatically opened; when the environment temperature is below DEG C, the high-pressure steam valve is automatically opened, the air inflow of the air inlet pipe is adjusted, and unnecessary steam loss and consumption are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical production, and more specifically to an instrument steam tracing heating device. Background Art

[0002] As the temperature drops, when the measured medium is transmitted to the instrument through the measuring pipeline, the ambient temperature is often too low to cause freezing and solidification. The low ambient temperature exceeds the normal working temperature range of the instrument used, which directly affects the accuracy of the instrument measurement display. In serious cases, it causes the main device to interlock and stop. Therefore, it is very important for users to prevent the instrument from freezing.

[0003] After searching, the patent document with the existing publication number CN218866330U provides an instrument steam heating device, which fully utilizes the condensed water by setting up a condensed water recovery station, and can observe the operating status of the equipment through the touch screen, and start and stop the submersible pump on the touch screen; in winter, the opening of the manual stop valve can be adjusted to avoid freezing.

[0004] The above-mentioned instrument steam tracing equipment has a low degree of automation and relies on manual adjustment when the ambient temperature changes, which will cause operation delays and affect the instrument antifreeze function of the device. In view of this, we propose an instrument steam tracing device. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] The utility model aims to provide an instrument steam tracing device to solve the problems raised in the above background technology.

[0007] 2. Technical solution

[0008] The utility model is realized by the following technical solutions:

[0009] An instrument steam tracing device comprises a controller, a high-pressure steam valve, a low-pressure steam valve, an air inlet pipe, a tracing main pipe, a tracing branch pipe, a temperature sensor and a recovery pipe;

[0010] The air intake pipe input end has two branch pipes, and the high-pressure steam valve and the low-pressure steam valve are respectively installed on the two branch pipes; the air intake pipe output end is connected to the heating main pipe;

[0011] There are multiple heating branch pipes, the input ends of the multiple heating branch pipes are connected to the heating main pipe, and the output ends of the multiple heating branch pipes are connected to the recovery pipe; the number of the temperature sensors is the same as the number of the heating branch pipes, and the temperature sensors are installed on the heating branch pipes;

[0012] The high-pressure steam valve, the low-pressure steam valve and the temperature sensor are all electrically connected to the controller, and the controller has a built-in wireless communication module.

[0013] As an optional solution of the technical solution of the present application document, the heating main pipe includes an outer pipe and an inner pipe, the inner pipe is located inside the outer pipe, and two branch pipes are provided at the output end of the intake pipe, and the outer pipe and the inner pipe are respectively connected to the two branch pipes;

[0014] The plurality of heating branch pipes are respectively connected with the outer pipe and the inner pipe.

[0015] As an optional solution of the technical solution of the present application document, it also includes an outer tube valve and an inner tube valve, which are respectively installed on two branch pipes at the output end of the intake pipe, and the outer tube valve and the inner tube valve are electrically connected to the controller.

[0016] As an optional solution of the technical solution of this application document, the high-pressure steam valve access pressure is 5kg / cm 2 steam.

[0017] As an optional solution of the technical solution of this application document, the low-pressure steam valve access pressure is 2kg / cm 2 steam.

[0018] As an optional solution of the technical solution of this application document, the output end of the recovery pipe is connected to a heat recovery module.

[0019] 3. Beneficial effects

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] 1. This application uses a controller to control the high-pressure steam valve and the low-pressure steam valve. When the external environmental files change, the high-pressure steam valve and the low-pressure steam valve can be automatically controlled to open and close without manual operation, thereby avoiding untimely manual adjustment, affecting the normal operation of the instrument, or causing steam waste.

[0022] 2. The present application adopts an outer tube valve and an inner tube valve to control the steam flow rate in the outer tube and the inner tube respectively. When the steam temperature in the heating branch at the end of the heating main pipe drops, the steam flow rate in the inner tube can be increased to avoid the increase of the convection speed between the steam and the outer tube, which causes the heat loss to increase, thereby ensuring the stability of the heating supply of the heating branch at the end of the heating main pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of an instrument steam heating device;

[0024] In the figure: 1. controller; 2. high-pressure steam valve; 3. low-pressure steam valve; 4. air inlet pipe; 5. heating main pipe; 501. outer pipe; 502. inner pipe; 6. heating branch pipe; 7. temperature sensor; 8. recovery pipe; 9. outer pipe valve; 10. inner pipe valve; 11. heat recovery module. DETAILED DESCRIPTION

[0025] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0026] See also Figure 1 The utility model provides an instrument steam heating device, including a controller 1, a high-pressure steam valve 2, a low-pressure steam valve 3, an air inlet pipe 4, a heating main pipe 5, a heating branch pipe 6, a temperature sensor 7, a recovery pipe 8, an outer pipe valve 9, an inner pipe valve 10 and a heat recovery module 11.

[0027] The controller 1 has a built-in wireless communication module, which can obtain information about the ambient temperature through the wireless communication module; the input end of the intake pipe 4 has two branches, and the high-pressure steam valve 2 and the low-pressure steam valve 3 are respectively installed on the two branches; among them, the high-pressure steam valve 2 is connected to the pressure of 5kg / cm 2 Steam; low pressure steam valve 3 access pressure is 2kg / cm 2 Steam. The controller 1 automatically controls the opening and closing of the high-pressure steam valve 2 and the low-pressure steam valve 3 based on the acquired ambient temperature information. When the ambient temperature is above 4°C, the low-pressure steam valve 3 is automatically opened; when the ambient temperature is below 4°C, the high-pressure steam valve 2 is automatically opened to adjust the air intake of the air intake pipe 4 to avoid unnecessary steam loss and consumption.

[0028] The heating main pipe 5 includes an outer pipe 501 and an inner pipe 502, wherein the inner pipe 502 is located inside the outer pipe 501. Two branch pipes are provided at the output end of the air inlet pipe 4, wherein the outer pipe 501 and the inner pipe 502 are respectively connected to the two branch pipes; there are multiple heating branch pipes 6, wherein the multiple heating branch pipes 6 are respectively connected to the outer pipe 501 and the inner pipe 502, and the output ends of the multiple heating branch pipes 6 are connected to the recovery pipe 8; the number of temperature sensors 7 is the same as the number of heating branch pipes 6, and the temperature sensors 7 are installed on the heating branch pipes 6. The controller 1 is electrically connected to the temperature sensor 7, and is used to collect the temperature of the steam in each heating branch pipe 6. The controller 1 can adjust the opening of the high-pressure steam valve 2 or the low-pressure steam valve 3 according to the collected temperature signal to avoid unnecessary steam loss and consumption.

[0029] In addition, the outer tube valve 9 and the inner tube valve 10 are respectively installed on the two branch pipes at the output end of the intake pipe 4, and the outer tube valve 9 and the inner tube valve 10 are electrically connected to the controller 1. The controller 1 controls the opening of the outer tube valve 9 and the inner tube valve 10 through the signal collected by the temperature sensor 7, adjusts the opening of the outer tube valve 9 and the inner tube valve 10, and adjusts the steam flow rate in the outer tube 501 and the inner tube 502. By increasing the steam flow rate in the inner tube 502, the heat loss during long-distance transmission of hot steam can be reduced, and the heat loss caused by increasing the steam flow rate when a single steam pipeline is used to transport steam is avoided, and the convection speed between the steam and the steam pipeline is increased.

[0030] In addition, the output end of the recovery pipe 8 is connected to a heat recovery module 11 , which may be a heat exchanger or a heat generator to fully utilize the heat energy.

Claims

1. An instrument steam heating device, characterized in that: It comprises a controller (1), a high-pressure steam valve (2), a low-pressure steam valve (3), an air inlet pipe (4), a heating main pipe (5), a heating branch pipe (6), a temperature sensor (7) and a recovery pipe (8); The air inlet pipe (4) has two branch pipes at its input end, and the high-pressure steam valve (2) and the low-pressure steam valve (3) are respectively installed on the two branch pipes; the air inlet pipe (4) is in communication with the main heating pipe (5) at its output end; There are a plurality of heating branch pipes (6), the input ends of the plurality of heating branch pipes (6) are all connected to the heating main pipe (5), and the output ends of the plurality of heating branch pipes (6) are connected to the recovery pipe (8); the number of the temperature sensors (7) is the same as the number of the heating branch pipes (6), and the temperature sensors (7) are installed on the heating branch pipes (6); The high-pressure steam valve (2), the low-pressure steam valve (3), and the temperature sensor (7) are all electrically connected to the controller (1), and the controller (1) has a built-in wireless communication module.

2. The instrument steam heating device according to claim 1, characterized in that: The heating main pipe (5) comprises an outer pipe (501) and an inner pipe (502), wherein the inner pipe (502) is located inside the outer pipe (501), and the output end of the air inlet pipe (4) is provided with two branch pipes, wherein the outer pipe (501) and the inner pipe (502) are respectively connected to the two branch pipes; The plurality of heating branch pipes (6) are respectively connected to the outer pipe (501) and the inner pipe (502).

3. The instrument steam tracing device according to claim 2, characterized in that: It also includes an outer tube valve (9) and an inner tube valve (10), wherein the outer tube valve (9) and the inner tube valve (10) are respectively installed on two branch pipes at the output end of the intake pipe (4), and the outer tube valve (9) and the inner tube valve (10) are both electrically connected to the controller (1).

4. The instrument steam tracing device according to claim 1, characterized in that: The high pressure steam valve (2) is connected to a pressure of 5 kg / cm 2 steam.

5. The instrument steam tracing device according to claim 1, characterized in that: The low-pressure steam valve (3) has a connection pressure of 2 kg / cm 2 steam.

6. The instrument steam tracing device according to claim 1, characterized in that: The output end of the recovery pipe (8) is connected to a heat energy recovery module (11).

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