A pure steam generator protection device
By introducing components such as capacitive level sensors, pressure gauges, and safety valves into the pure steam generator, a multi-layered safety protection system is constructed, solving the problems of insufficient water level monitoring and inaccurate pressure control, and achieving high-quality steam output and improved equipment safety.
Patent Information
- Application Number
- CN202522569434.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-03
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-03
AI Technical Summary
Existing pure steam generators lack a sound water level monitoring mechanism, are prone to dry burning due to insufficient water supply, have insufficient pressure control accuracy, pose overpressure safety hazards, have low thermal energy utilization, and are inconvenient to maintain.
A protection device for a pure steam generator was designed, comprising components such as a capacitive liquid level sensor, pressure gauge, safety valve, rupture disc device, gas-liquid separator, and heat exchanger, forming a multi-layered safety protection system. Through real-time monitoring and automatic control, it avoids dry burning and overpressure, thereby improving steam quality and safety.
It achieves the output of high dryness or superheated steam, meets the requirements of high-end processes, ensures equipment safety, avoids dangerous conditions such as dry burning and overpressure, and improves the inherent safety of the equipment.
Smart Images
Figure CN224932713U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steam generating equipment technology, specifically a protection device for a pure steam generator. Background Technology
[0002] A pure steam generator is a device that produces high-purity steam by heating purified water. The steam it produces does not contain any chemical additives and is widely used in industries such as pharmaceuticals, medical devices, bioengineering, and food. It is crucial for ensuring the sterility of the final product.
[0003] Pure steam generators have important applications in pharmaceuticals, medical sterilization, and other fields. However, existing pure steam generators lack a robust water level monitoring mechanism during operation, making them prone to dry burning due to insufficient water supply; their pressure control accuracy is insufficient, posing a risk of overpressure; their thermal energy utilization rate is low; and their maintenance is inconvenient. Therefore, this invention provides a protection device for pure steam generators. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a protection device for a pure steam generator, solving the problems mentioned in the background section.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a pure steam generator protection device, comprising a pure steam generator body, a base frame, and a control box. The bottom of the pure steam generator body is equipped with a heating element and a drain valve. The side wall of the pure steam generator body is equipped with a water inlet and a water level sight glass. The top of the pure steam generator body is equipped with a steam outlet, a capacitive liquid level sensor, a pressure gauge, and a safety valve and a rupture disc device connected in parallel. The steam outlet is connected to the inlet of a gas-water separator via a connecting pipe. The gas-water separator is independently mounted on the base frame via a bracket. A drain valve is installed at the bottom condensate outlet of the gas-water separator. The outlet of the gas-water separator is connected to a heat exchanger via a pipe. A temperature sensor is installed on the pipe between the gas-water separator and the heat exchanger. A flexible metal hose for displacement compensation is integrated on the pipe between the gas-water separator and the heat exchanger.
[0008] Preferably, the heating element is a plurality of electric heating tubes arranged in a ring. The heating element is fixed to the bottom of the pure steam generator body by a flange connection. The heating element is provided with a detachable protective cover. The safety valve is a spring-type structure with an adjustable pressure relief value. The safety valve is fixed by a flange connection. The rupture disc device includes a metal diaphragm and a clamp. Both the metal diaphragm and the clamp are installed on the top of the pure steam generator body.
[0009] Preferably, the main body of the pure steam generator is fixed to the base frame by a bracket, and the control box is set at a safe position outside the main body of the pure steam generator by an isolation bracket. The control box has an embedded PLC controller and is installed at a safe position to the side of the main body of the pure steam generator by an isolation bracket. The control box is electrically connected to a capacitive liquid level sensor, a temperature sensor and a heating element.
[0010] Preferably, the gas-water separator is a combination of a centrifugal separator and a wire mesh demister, and the steam outlet of the gas-water separator is located at the top of the equipment.
[0011] Preferably, the temperature sensor is inserted into the pipe through a thermometer sleeve, and the thermometer sleeve is welded to the pipe.
[0012] Preferably, it also includes a steam sampling system, which includes a sample cooler and a sample valve, wherein the inlet of the sample cooler is connected to the outlet pipe of the heat exchanger via a tee fitting.
[0013] Preferably, the heat exchanger is independently mounted on the base frame via a bracket. The heat exchanger has a shell-and-tube structure. The shell-side medium of the heat exchanger is pure steam, and the tube-side medium of the heat exchanger is cooling water or a heating medium.
[0014] (III) Beneficial Effects
[0015] Compared with the prior art, this utility model provides a protection device for a pure steam generator, which has the following beneficial effects:
[0016] This pure steam generator protection device, through the coordinated arrangement of the pure steam generator body, heating element, drain valve, water inlet, water level sight glass, steam outlet, capacitive liquid level sensor, pressure gauge, safety valve, rupture disc device, connecting pipes, gas-liquid separator, steam trap, temperature sensor, metal hose, heat exchanger, base frame, and control box, ensures high dryness or superheat of the output steam, meeting the stringent requirements of high-end processes for steam quality and improving steam quality. The safety valve and rupture disc device, connected in parallel, form a dual, independent overpressure protection barrier, ensuring extremely high safety. The control box, through real-time data acquisition and monitoring via the capacitive liquid level sensor, pressure gauge, and temperature sensor, automatically controls the heating element, effectively preventing dangerous conditions such as dry burning and overpressure. This forms a multi-layered safety protection system of "active control + passive protection," greatly enhancing the inherent safety of the equipment and ensuring safe operation. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This utility model Figure 1 Enlarged view at point A.
[0019] In the diagram: 1. Pure steam generator body; 2. Heating element; 3. Drain valve; 4. Water inlet; 5. Water level sight glass; 6. Steam outlet; 7. Capacitive liquid level sensor; 8. Pressure gauge; 9. Safety valve; 10. Rupture disc device; 11. Connecting pipe; 12. Gas-water separator; 13. Steam trap; 14. Temperature sensor; 15. Metal hose; 16. Heat exchanger; 17. Base frame; 18. Control box. 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] Please see Figure 1-2This utility model provides a technical solution: a pure steam generator protection device, including a pure steam generator body 1, a base frame 17, and a control box 18. Through the coordinated arrangement of the pure steam generator body 1, heating element 2, drain valve 3, water inlet 4, water level sight glass 5, steam outlet 6, capacitive liquid level sensor 7, pressure gauge 8, safety valve 9, rupture disc device 10, connecting pipe 11, gas-liquid separator 12, steam trap 13, temperature sensor 14, metal hose 15, heat exchanger 16, base frame 17, and control box 18, in use, the gas-liquid separator 12 removes liquid water droplets from the steam, and the subsequent heat exchanger 16 can act as a superheater, converting saturated steam into moisture-free superheated steam. The combination of these two components ensures safe operation. The high dryness or superheat of the steam meets the stringent requirements of high-end processes for steam quality, thus improving steam quality. The safety valve 9 and the rupture disc device 10 are connected in parallel, forming a double, independent overpressure protection barrier, ensuring extremely high safety. The control box 18 can collect data in real time through the capacitive level sensor 7, pressure gauge 8, and temperature sensor 14, automatically controlling the heating element and effectively preventing dangerous conditions such as dry burning and overpressure. This forms a multi-layered safety protection system of "active control + passive protection," greatly improving the inherent safety of the equipment and ensuring safe operation. The bottom of the pure steam generator body 1 is equipped with a heating element 2 and a drain valve 3, while the side wall of the pure steam generator body 1 is equipped with a water inlet 4 and a water level indicator. The top of the pure steam generator body 1 is equipped with a steam outlet 6, a capacitive liquid level sensor 7, a pressure gauge 8, and a safety valve 9 and a rupture disc device 10 connected in parallel. The steam outlet 6 is connected to the inlet of a gas-water separator 12 via a connecting pipe 11. The gas-water separator 12 is independently mounted on the base frame 17 via a bracket. A drain valve 13 is installed at the bottom condensate outlet of the gas-water separator 12. The outlet of the gas-water separator 12 is connected to a heat exchanger 16 via a pipe. A temperature sensor 14 is installed on the pipe between the gas-water separator 12 and the heat exchanger 16. A flexible metal hose 15 for displacement compensation is integrated on the pipe between the gas-water separator 12 and the heat exchanger 16. The heating element 2 consists of multiple sets of annularly distributed electric heating tubes. The heating element 2 is connected by a method The flange is fixed to the bottom of the pure steam generator body 1. The heating element 2 is equipped with a removable protective cover. The safety valve 9 is a spring-loaded structure with an adjustable pressure relief value. The safety valve 9 is fixed by a flange connection. The rupture disc device 10 includes a metal diaphragm and a clamp, both of which are installed on the top of the pure steam generator body 1. The pure steam generator body 1 is fixed to the base frame 17 by a bracket. The control box 18 is set at a safe distance from the outside of the pure steam generator body 1 by an isolation bracket. The control box 18 has an embedded PLC controller and is installed at a safe distance from the side of the pure steam generator body 1 by an isolation bracket. The control box 18 is electrically connected to the capacitive liquid level sensor 7, the temperature sensor 14, and the heating element 2.The gas-water separator 12 is a combination of a centrifugal separator and a wire mesh demister. The steam outlet of the gas-water separator 12 is located at the top of the equipment. A temperature sensor 14 is inserted into the pipe through a thermometer sleeve, which is welded to the pipe. A steam sampling system is also included, comprising a sample cooler and a sample valve. The inlet of the sample cooler is connected to the outlet pipe of the heat exchanger 16 via a tee fitting. The heat exchanger 16 is independently mounted on the base frame 17 via a bracket. The heat exchanger 16 has a shell-and-tube structure; the shell-side medium of the heat exchanger 16 is pure steam, and the tube-side medium is cooling water or a heating medium.
[0022] In summary, this pure steam generator protection device is configured by the cooperation of the pure steam generator body 1, heating element 2, drain valve 3, water inlet 4, water level sight glass 5, steam outlet 6, capacitive liquid level sensor 7, pressure gauge 8, safety valve 9, rupture disc device 10, connecting pipe 11, gas-liquid separator 12, steam trap 13, temperature sensor 14, metal hose 15, heat exchanger 16, base frame 17, and control box 18. During use, the gas-liquid separator 12 removes liquid water droplets from the steam, and the subsequent heat exchanger 16 acts as a superheater, converting saturated steam into moisture-free superheated steam. The two components work together... The combination ensures high dryness or superheat of the output steam, meeting the stringent requirements of high-end processes for steam quality and improving steam quality. The safety valve 9 and the rupture disc device 10 are connected in parallel to form a double, independent overpressure protection barrier, which is extremely safe. The control box 18 can collect data in real time through the capacitive liquid level sensor 7, pressure gauge 8 and temperature sensor 14 to monitor and automatically control the heating element, effectively avoiding dangerous conditions such as dry burning and overpressure. This forms a multi-layered safety protection system of "active control + passive protection", which greatly improves the inherent safety of the equipment and ensures safe operation.
[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0024] In the description of this utility model, it should also be noted that the device structure and drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.
[0025] In the description of this utility model, it should also be noted that all standard parts used can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the structure and principle of the components known to those skilled in the art can be learned by those skilled in the art through technical manuals or conventional experimental methods.
[0026] It should also 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0027] 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 protection device for a pure steam generator, comprising a pure steam generator body (1), a base frame (17), and a control box (18), characterized in that: The bottom of the pure steam generator body (1) is provided with a heating element (2) and a drain valve (3). The side wall of the pure steam generator body (1) is provided with a water inlet (4) and a water level sight glass (5). The top of the pure steam generator body (1) is provided with a steam outlet (6), a capacitive liquid level sensor (7), a pressure gauge (8), and a safety valve (9) and a rupture disc device (10) connected in parallel. The steam outlet (6) is connected to the inlet of a gas-water separator (12) through a connecting pipe (11). The gas-water separator (12) is independently mounted on the base frame (17) by a bracket. A drain valve (13) is installed at the bottom drain port of the gas-water separator (12). The outlet of the gas-water separator (12) is connected to a heat exchanger (16) through a pipe. A temperature sensor (14) is provided on the pipe between the gas-water separator (12) and the heat exchanger (16). A metal hose (15) for compensating for displacement is integrated on the pipe between the gas-water separator (12) and the heat exchanger (16).
2. The pure steam generator protection device according to claim 1, characterized in that: The heating element (2) consists of multiple sets of electric heating tubes arranged in a ring. The heating element (2) is fixed to the bottom of the pure steam generator body (1) by a flange connection. The heating element (2) is provided with a detachable protective cover. The safety valve (9) is a spring-type structure with an adjustable pressure relief value. The safety valve (9) is fixed by a flange connection. The rupture disc device (10) includes a metal film and a clamp. The metal film and the clamp are both installed on the top of the pure steam generator body (1).
3. The pure steam generator protection device according to claim 1, characterized in that: The main body (1) of the pure steam generator is fixed on the base frame (17) by a bracket. The control box (18) is set at a safe position outside the main body (1) of the pure steam generator by an isolation bracket. The control box (18) is embedded with a PLC controller. The control box (18) is installed at a safe position to the side of the main body (1) of the pure steam generator by an isolation bracket. The control box (18) is electrically connected to the capacitive liquid level sensor (7), the temperature sensor (14) and the heating element (2).
4. The pure steam generator protection device according to claim 1, characterized in that: The gas-water separator (12) is a combination structure of centrifugal and wire mesh demister, and the steam outlet of the gas-water separator (12) is located at the top of the equipment.
5. A protection device for a pure steam generator according to claim 1, characterized in that: The temperature sensor (14) is inserted into the pipe through a thermometer sleeve, and the thermometer sleeve is welded to the pipe.
6. A protection device for a pure steam generator according to claim 1, characterized in that: It also includes a steam sampling system, which includes a sample cooler and a sample valve. The inlet of the sample cooler is connected to the outlet pipe of the heat exchanger (16) via a tee fitting.
7. A protection device for a pure steam generator according to claim 1, characterized in that: The heat exchanger (16) is independently mounted on the base frame (17) by a bracket. The heat exchanger (16) is a shell and tube structure. The shell-side medium of the heat exchanger (16) is pure steam, and the tube-side medium of the heat exchanger (16) is cooling water or heating medium.