Energy-saving vaporizer using device

Abstract

The utility model provides an energy -conserving vaporizer device uses device belongs to industrial oxygen production technical field, including two groups of two groups of water bath type vaporizer of parallelly connected arrangement, two groups of water bath type vaporizer are steam heating type water bath vaporizer and medium pressure normal temperature circulating water type water bath vaporizer respectively, two groups of water bath type vaporizer are connected with the liquid oxygen conveying assembly for conveying the liquid oxygen that liquid oxygen pump output respectively to two groups of water bath type vaporizer, and two groups of water bath type vaporizer still are connected with the oxygen output assembly for conveying the gaseous oxygen that two groups of water bath type vaporizer generate to oxygen total pipe network, wherein, steam heating type water bath vaporizer is connected with the steam supply assembly for providing heating steam for steam heating type water bath vaporizer, and medium pressure normal temperature circulating water type water bath vaporizer is connected with the medium pressure normal temperature circulating water assembly for providing medium pressure normal temperature circulating water for medium pressure normal temperature circulating water type water bath vaporizer and recycling circulating water after heat exchange. The utility model can improve vaporization stability and reliability.

Description

Technical Field

[0001] This utility model belongs to the field of industrial oxygen production technology, and in particular relates to an energy-saving vaporizer device. Background Technology

[0002] In the air separation production process of industrial oxygen production, to cope with emergencies and meet users' oxygen demand, liquid oxygen pumps and vaporizers are usually installed. The liquid oxygen pump delivers liquid oxygen to the vaporizer, where it is vaporized into gaseous oxygen and then supplied to the pipeline network to ensure a normal product supply. Among these, the water bath vaporizer is one of the commonly used devices. Its working principle is to heat the water inside the vaporizer with steam, and then use the hot water to heat the liquid oxygen flowing through the coils, causing the liquid oxygen to vaporize into gaseous oxygen.

[0003] However, existing water bath vaporizers have many operational problems: the vaporization capacity of the vaporizer is closely related to the temperature, pressure, and vaporization rate of the steam. A drop in steam temperature, insufficient pressure, or abnormal vaporization rate will all lead to a decrease in the water temperature inside the vaporizer. This drop in water temperature will prevent the liquid oxygen pump from operating stably for extended periods, necessitating a reduction in vaporization rate or even pump shutdown, severely impacting the oxygen supply to users and failing to meet their needs.

[0004] Furthermore, because the water temperature drops rapidly, even if the liquid oxygen pump stops, the steam valve still needs to be kept open for a long time to maintain the equipment temperature in order to ensure the service life and operational safety of the vaporizer equipment. This not only wastes a lot of steam, but may also cause steam to overflow, which is neither energy-saving nor safe.

[0005] Therefore, there is an urgent need for an energy-efficient vaporizer device that can improve the working efficiency and stability of the vaporizer and reduce energy waste, in order to solve the above-mentioned problems in the existing technology. Utility Model Content

[0006] This invention addresses the problems of poor efficiency and stability in existing water bath vaporizers. It provides an energy-saving vaporizer device that improves the stability and reliability of the vaporizer.

[0007] The technical solution adopted by this utility model for an energy-saving vaporizer device is as follows:

[0008] An energy-saving vaporizer application device includes two sets of water bath vaporizers connected in parallel. The two sets of water bath vaporizers are a steam-heated water bath vaporizer and a medium-pressure ambient temperature circulating water water bath vaporizer. The two sets of water bath vaporizers are connected to a liquid oxygen delivery component for delivering liquid oxygen output from a liquid oxygen pump to the two sets of water bath vaporizers respectively. Simultaneously, the two sets of water bath vaporizers are also connected to an oxygen output component for delivering gaseous oxygen generated by the two sets of water bath vaporizers to a main oxygen pipeline network. The steam-heated water bath vaporizer is connected to a steam supply component for providing heating steam to the steam-heated water bath vaporizer, and the medium-pressure ambient temperature circulating water water bath vaporizer is connected to a medium-pressure ambient temperature circulating water component for providing medium-pressure ambient temperature circulating water to the medium-pressure ambient temperature circulating water water bath vaporizer and recovering the circulating water after heat exchange.

[0009] A further improvement of the present invention is that the liquid oxygen delivery assembly includes two manual liquid oxygen delivery valves. One end of each manual liquid oxygen delivery valve is connected to the DN100 output pipe of the liquid oxygen pump, and the other end is connected to the liquid oxygen inlet of the steam-heated water bath vaporizer and the liquid oxygen inlet of the medium-pressure ambient temperature circulating water bath vaporizer, respectively.

[0010] A further improvement of the present invention is that the oxygen output component includes two automatic oxygen output valves. One end of each of the two automatic oxygen output valves is connected to the oxygen outlet of the steam-heated water bath vaporizer and the oxygen outlet of the medium-pressure ambient temperature circulating water bath vaporizer, respectively. The other end of each valve is connected to a DN100 oxygen output pipe, and the DN100 oxygen output pipe is connected to the main oxygen pipeline network.

[0011] A further improvement of the present invention is that the steam supply component includes an automatic water temperature regulating valve, one end of which is connected to a DN150 steam pipeline, and the other end is connected to the steam inlet of a steam-heated water bath vaporizer.

[0012] A further improvement of this utility model is that: the steam-heated water bath vaporizer is equipped with a water temperature detection element and a water temperature alarm unit for detecting the water temperature inside the steam-heated water bath vaporizer. The water temperature alarm unit is equipped with a water temperature alarm point, and the temperature corresponding to the water temperature alarm point is not lower than 40°C.

[0013] A further improvement of this utility model is that the water temperature alarm unit is electrically connected to the water temperature automatic regulating valve. When the water temperature detected by the water temperature detection element is lower than the water temperature alarm point, the water temperature alarm unit sends a signal to the water temperature automatic regulating valve, and the water temperature automatic regulating valve increases the steam flow.

[0014] A further improvement of the present invention is that the medium-pressure ambient temperature circulating water assembly includes a medium-pressure ambient temperature circulating water input pipe connected to the circulating water inlet of the medium-pressure ambient temperature circulating water bath vaporizer and a medium-pressure ambient temperature circulating water drain pipe connected to the circulating water outlet of the medium-pressure ambient temperature circulating water bath vaporizer. The end of the medium-pressure ambient temperature circulating water drain pipe away from the medium-pressure ambient temperature circulating water bath vaporizer extends to the water replenishment point of the cooling water pool.

[0015] A further improvement of this utility model is that: the medium-pressure ambient temperature circulating water input pipe is equipped with a flow regulating valve for adjusting the flow rate of the medium-pressure ambient temperature circulating water entering the medium-pressure ambient temperature circulating water bath vaporizer.

[0016] A further improvement of this utility model is that the steam-heated water bath vaporizer and the medium-pressure ambient temperature circulating water bath vaporizer have the same structure, both including a shell, a heat exchange coil installed in the shell, and a temperature sensor for detecting the water temperature in the shell; wherein, the two ends of the heat exchange coil serve as the liquid oxygen inlet and the oxygen outlet, respectively.

[0017] The technological advancements achieved by this utility model due to the adoption of the above technical solution are as follows:

[0018] This invention employs two sets of parallel water bath vaporizers, with both sets sharing the vaporization load, thus avoiding the drawbacks of a single vaporizer relying on steam parameters. When steam temperature, pressure, or other parameters become abnormal, the medium-pressure, ambient-temperature circulating water bath vaporizer can continue to operate stably, ensuring that the overall vaporization load is not severely affected and guaranteeing the oxygen supply to users. This solves the problem in existing technologies where a single abnormal factor can cause the liquid oxygen pump to be unable to operate for extended periods, requiring a reduction in vaporization load or pump shutdown; thereby improving the stability and reliability of vaporization.

[0019] This invention, on the one hand, eliminates the need for steam heating in the medium-pressure, ambient-temperature circulating water vaporizer, reducing steam consumption; on the other hand, the temperature of the medium-pressure, ambient-temperature circulating water decreases after heat exchange with liquid oxygen, flowing into the cooling water tank's makeup water point through the drain pipe, effectively lowering the cooling water tank's temperature and reducing the number of cooling fans required, thereby reducing the equipment's power consumption. Simultaneously, it avoids the steam waste caused by the steam valve remaining open for an extended period after pump shutdown, as is common in existing technologies, further achieving energy-saving effects.

[0020] This utility model of a steam-heated water bath vaporizer is equipped with a water temperature alarm point. Combined with an automatic water temperature regulating valve, it can monitor and regulate the water temperature in real time, avoiding damage to the equipment caused by excessively low water temperature, ensuring that the equipment operates within a safe temperature range, and extending the service life of the equipment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of an energy-saving vaporizer device provided by this utility model.

[0022] In the attached diagram: 1. Steam-heated water bath vaporizer; 2. Medium-pressure ambient temperature circulating water bath vaporizer;

[0023] 3. Liquid oxygen delivery assembly; 31. Manual liquid oxygen delivery valve; 32. DN100 output pipe;

[0024] 4. Oxygen output assembly; 41. Automatic oxygen output valve; 42. DN100 oxygen output pipe;

[0025] 5. Steam supply components; 51. Automatic water temperature regulating valve; 52. DN150 steam pipeline network;

[0026] 6. Medium-pressure ambient temperature circulating water assembly; 61. Medium-pressure ambient temperature circulating water inlet pipe; 62. Medium-pressure ambient temperature circulating water outlet pipe; 63. Cooling water tank. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. In the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily obscuring the concept of this utility model.

[0028] like Figure 1 As shown in the figure, the energy-saving vaporizer device disclosed in this embodiment includes two sets of water bath vaporizers arranged in parallel. The two sets of water bath vaporizers are a steam-heated water bath vaporizer 1 and a medium-pressure ambient temperature circulating water water bath vaporizer 2. The two sets of water bath vaporizers have the same structure, including a shell, a heat exchange coil installed in the shell, and a temperature sensor. The two ends of the heat exchange coil serve as a liquid oxygen inlet and an oxygen outlet, respectively. The temperature sensor is used to detect the water temperature in the shell.

[0029] This embodiment also includes a liquid oxygen delivery assembly 3, an oxygen output assembly 4, a steam supply assembly 5, and a medium-pressure ambient temperature circulating water assembly 6. The liquid oxygen delivery assembly 3 includes two manual liquid oxygen delivery valves 31. One end of each valve 31 is connected via a pipeline to the DN100 output pipe 32 of the liquid oxygen pump, and the other end is connected via pipelines to the liquid oxygen inlet of the steam-heated water bath vaporizer 1 and the liquid oxygen inlet of the medium-pressure ambient temperature circulating water bath vaporizer 2, respectively. The manual liquid oxygen delivery valves 31 are used to manually control the delivery of liquid oxygen to the two vaporizers, allowing for flexible adjustment of the operation of one or both vaporizers according to actual working conditions.

[0030] In this embodiment, the oxygen output assembly 4 includes two automatic oxygen output valves 41. One end of each valve 41 is connected via pipeline to the oxygen outlet of the steam-heated water bath vaporizer 1 and the oxygen outlet of the medium-pressure ambient temperature circulating water bath vaporizer 2, respectively. The other end of each valve is connected via pipeline to a DN100 oxygen output pipe 42. The end of the DN100 oxygen output pipe 42 furthest from the automatic oxygen output valve 41 is connected to the main oxygen pipeline network. The automatic oxygen output valves 41 can automatically open or close according to the operating status of the vaporizers, ensuring a stable supply of gaseous oxygen to the main pipeline network.

[0031] In this embodiment, the steam supply assembly 5 includes an automatic water temperature regulating valve 51. One end of the automatic water temperature regulating valve 51 is connected to a DN150 steam network 52 via a pipeline, and the other end is connected to the steam inlet of the steam-heated water bath vaporizer 1 via a pipeline. The housing of the steam-heated water bath vaporizer 1 is equipped with a water temperature detection element (such as a thermocouple) and a water temperature alarm unit. The water temperature detection element detects the water temperature inside the housing in real time and transmits the signal to the water temperature alarm unit. The preset water temperature alarm point of the water temperature alarm unit is 40℃. When the water temperature detected by the water temperature detection element is lower than 40℃, the water temperature alarm unit sends a signal to the automatic water temperature regulating valve 51. After receiving the signal, the automatic water temperature regulating valve 51 automatically increases the valve opening, increasing the amount of steam supplied to the steam-heated water bath vaporizer 1 to raise the water temperature inside the housing. When the water temperature rises back to 40℃ or above, the automatic water temperature regulating valve 51 appropriately reduces the opening to maintain a stable water temperature and avoid steam waste.

[0032] In this embodiment, the medium-pressure ambient temperature circulating water assembly 6 includes a medium-pressure ambient temperature circulating water inlet pipe 61 and a medium-pressure ambient temperature circulating water outlet pipe 62. One end of the medium-pressure ambient temperature circulating water inlet pipe 61 is connected to an external medium-pressure ambient temperature circulating water supply source, and the other end is connected to the circulating water inlet of the medium-pressure ambient temperature circulating water bath vaporizer 2. A flow regulating valve is installed on the medium-pressure ambient temperature circulating water inlet pipe 61 to adjust the input flow rate of the circulating water according to the vaporization requirements of the medium-pressure ambient temperature circulating water bath vaporizer 2. One end of the medium-pressure ambient temperature circulating water outlet pipe 62 is connected to the circulating water outlet of the medium-pressure ambient temperature circulating water bath vaporizer 2, and the other end extends to the water replenishment point of the cooling water pool 63. After the medium-pressure ambient temperature circulating water enters the shell of the medium-pressure ambient temperature circulating water bath vaporizer 2, it exchanges heat with the liquid oxygen in the heat exchange coil inside the shell. The liquid oxygen absorbs heat and vaporizes into gaseous oxygen. The medium-pressure ambient temperature circulating water cools down due to the release of heat. The cooled circulating water flows into the cooling water pool 63 through the medium-pressure ambient temperature circulating water drain pipe 62, which can effectively reduce the water temperature in the cooling water pool 63, reduce the number of cooling fans that are equipped with the cooling water pool 63, and reduce the power consumption of the equipment.

[0033] The working principle of the energy-saving vaporizer in this embodiment is as follows: During normal operation, the liquid oxygen output by the liquid oxygen pump enters the steam-heated water bath vaporizer 1 and the medium-pressure ambient temperature circulating water bath vaporizer 2 through the DN100 output pipe 32 and two manual liquid oxygen discharge valves 31. For the steam-heated water bath vaporizer 1, the DN150 steam network 52 introduces steam through the water temperature automatic regulating valve 51 to heat the water in the shell. The hot water exchanges heat with the liquid oxygen in the heat exchange coil, causing the liquid oxygen to vaporize. The generated gaseous oxygen enters the main oxygen network through the oxygen output automatic valve 41 and the DN100 oxygen output pipe 42. At the same time, the water temperature detection element monitors the water temperature in real time and maintains the water temperature at no less than 40°C through the water temperature automatic regulating valve 51. For the medium-pressure ambient temperature circulating water vaporizer 2, the medium-pressure ambient temperature circulating water enters the shell through the medium-pressure ambient temperature circulating water inlet pipe 61 and the flow regulating valve 10 to regulate the flow rate. It exchanges heat with the liquid oxygen in the heat exchange coil. After the liquid oxygen is vaporized, it enters the oxygen main pipeline through the oxygen output automatic valve 41 and the DN100 oxygen output pipe 42. The circulating water that has cooled down after heat exchange flows into the cooling water pool 63 through the medium-pressure ambient temperature circulating water drain pipe 62.

[0034] When the steam temperature or pressure in the steam pipeline decreases, the vaporization capacity of the steam-heated water bath vaporizer 1 decreases. In this case, the vaporization rate of the medium-pressure ambient temperature circulating water vaporizer 2 can be increased by increasing the opening of the flow regulating valve on the medium-pressure ambient temperature circulating water inlet pipe 61. The two vaporizers work together to ensure that the total vaporization rate meets the user's needs. Once the steam parameters return to normal, the load on both vaporizers is adjusted back to normal.

[0035] When it is necessary to stop the operation of one set of vaporizers (such as for maintenance), simply close the corresponding liquid oxygen manual delivery valve 31 and oxygen output automatic valve 41. The other set of vaporizers can continue to work, ensuring the continuity of oxygen supply.

[0036] In the above embodiments, this utility model provides an energy-saving vaporizer device. By setting up two sets of parallel water bath vaporizers, the two sets of equipment share the vaporization load, avoiding the drawbacks of a single vaporizer relying on steam parameters. When parameters such as steam temperature and pressure are abnormal, the medium-pressure ambient temperature circulating water bath vaporizer can continue to operate stably, ensuring that the overall vaporization load is not severely affected, guaranteeing the oxygen supply to users. This solves the problem in the prior art where a single abnormal factor causes the liquid oxygen pump to be unable to operate for a long time, requiring a reduction in vaporization load or pump shutdown; thus improving the stability and reliability of vaporization. On the one hand, this utility model eliminates the need for steam heating in the medium-pressure ambient temperature circulating water bath vaporizer, reducing steam consumption. On the other hand, the temperature of the medium-pressure ambient temperature circulating water decreases after heat exchange with liquid oxygen, flowing into the cooling water tank's water supply point through the drain pipe, effectively reducing the water temperature of the cooling water tank and the number of cooling fans required, thereby reducing the equipment's power consumption. Meanwhile, it avoids the steam waste caused by the steam valve remaining open for a long time after the pump stops in the existing technology, and further achieves the energy-saving effect; the steam-heated water bath vaporizer of this utility model is equipped with a water temperature alarm point, which, combined with the water temperature automatic regulating valve, can monitor and regulate the water temperature in real time, avoid damage to the equipment caused by excessively low water temperature, ensure that the equipment operates within a safe temperature range, and extend the service life of the equipment.

[0037] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention. The technical content for which protection is sought in the present invention has been fully described in the claims.

Claims

1. An energy saving vaporizer usage device, characterized by: It includes two sets of water bath vaporizers connected in parallel. The two sets of water bath vaporizers are a steam-heated water bath vaporizer (1) and a medium-pressure ambient temperature circulating water water bath vaporizer (2). The two sets of water bath vaporizers are connected to a liquid oxygen delivery component (3) for delivering liquid oxygen output from the liquid oxygen pump to the two sets of water bath vaporizers respectively. At the same time, the two sets of water bath vaporizers are also connected to an oxygen output component (4) for delivering gaseous oxygen generated by the two sets of water bath vaporizers to the main oxygen pipeline network. Among them, the steam-heated water bath vaporizer (1) is connected to a steam supply component (5) for providing heating steam to the steam-heated water bath vaporizer (1), and the medium-pressure ambient temperature circulating water water bath vaporizer (2) is connected to a medium-pressure ambient temperature circulating water component (6) for providing medium-pressure ambient temperature circulating water to the medium-pressure ambient temperature circulating water water bath vaporizer (2) and recovering the circulating water after heat exchange.

2. The energy-saving vaporizer application device according to claim 1, characterized in that: The liquid oxygen delivery assembly (3) includes two liquid oxygen manual delivery valves (31). One end of each of the two liquid oxygen manual delivery valves (31) is connected to the DN100 output pipe (32) of the liquid oxygen pump, and the other end is connected to the liquid oxygen inlet of the steam-heated water bath vaporizer (1) and the liquid oxygen inlet of the medium-pressure ambient temperature circulating water water bath vaporizer (2), respectively.

3. The energy-saving vaporizer application device according to claim 1, characterized in that: The oxygen output assembly (4) includes two oxygen output automatic valves (41). One end of each of the two oxygen output automatic valves (41) is connected to the oxygen outlet of the steam-heated water bath vaporizer (1) and the oxygen outlet of the medium-pressure ambient temperature circulating water bath vaporizer (2), respectively. The other end of each valve is connected to a DN100 oxygen output pipe (42), and the DN100 oxygen output pipe (42) is connected to the main oxygen pipeline network.

4. The energy-saving vaporizer application device according to claim 1, characterized in that: The steam supply assembly (5) includes an automatic water temperature regulating valve (51), one end of which is connected to a DN150 steam pipeline (52), and the other end is connected to the steam inlet of a steam-heated water bath vaporizer (1).

5. The energy-saving vaporizer use device according to claim 1, characterized by: The steam-heated water bath vaporizer (1) is equipped with a water temperature detection element and a water temperature alarm unit for detecting the water temperature inside the steam-heated water bath vaporizer (1). The water temperature alarm unit is equipped with a water temperature alarm point, and the temperature corresponding to the water temperature alarm point is not lower than 40°C.

6. The energy-saving vaporizer application device according to claim 5, characterized in that: The water temperature alarm unit is electrically connected to the water temperature automatic regulating valve (51). When the water temperature detected by the water temperature detection element is lower than the water temperature alarm point, the water temperature alarm unit sends a signal to the water temperature automatic regulating valve (51), and the water temperature automatic regulating valve (51) increases the steam flow.

7. The energy-saving vaporizer use device according to claim 1, characterized by: The medium-pressure ambient temperature circulating water assembly (6) includes a medium-pressure ambient temperature circulating water inlet pipe (61) connected to the circulating water inlet of the medium-pressure ambient temperature circulating water bath vaporizer (2) and a medium-pressure ambient temperature circulating water outlet pipe (62) connected to the circulating water outlet of the medium-pressure ambient temperature circulating water bath vaporizer (2). The end of the medium-pressure ambient temperature circulating water outlet pipe (62) away from the medium-pressure ambient temperature circulating water bath vaporizer (2) extends to the water replenishment point of the cooling water pool (63).

8. The energy-saving vaporizer application device according to claim 7, characterized in that: The medium-pressure ambient temperature circulating water input pipe (61) is equipped with a flow regulating valve for adjusting the flow rate of medium-pressure ambient temperature circulating water entering the medium-pressure ambient temperature circulating water vaporizer (2).

9. The energy-saving vaporizer use device according to claim 1, characterized by: The steam-heated water bath vaporizer (1) and the medium-pressure ambient temperature circulating water water bath vaporizer (2) have the same structure, both including a shell, a heat exchange coil installed in the shell, and a temperature sensor for detecting the water temperature in the shell; wherein, the two ends of the heat exchange coil serve as the liquid oxygen inlet and the oxygen outlet, respectively.

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