Constant-temperature water tank equipment

Abstract

The utility model discloses constant-temperature water bath equipment, which comprises a water bath, the water level sensor is used for detecting the water level in the water bath; the input end and the output end of the temperature adjusting device are respectively communicated with the water bath through a first pipeline and a second pipeline; the water supplementing pipeline is communicated with the input end of the temperature adjusting device, and a first valve is arranged on the water supplementing pipeline; the drainage pipeline is communicated with the water bath, and a second valve is arranged on the drainage pipeline; when the water level sensor detects that the water level height in the water bath is smaller than a low water level threshold value, the first valve is opened; when the water level sensor detects that the water level height in the water bath is higher than the high water level threshold value, the second valve is opened. The temperature adjusting device is arranged outside the water bath tank, so that the water temperature distribution uniformity in the whole water bath tank is better ensured; and the water bath is also connected with the water replenishing pipeline and the drainage pipeline, so that the water quantity in the water bath can be maintained in a reasonable and stable range, and the working performance of the constant-temperature water bath equipment is further improved to a certain extent.

Description

Technical Field

[0001] The utility model relates to the field of constant temperature equipment, in particular to a constant temperature water tank equipment. Background Art

[0002] The metal-organic compounds used in MOCVD (Metal-organic Chemical Vapor Deposition) need to maintain a constant vapor pressure, so the source bottle of the metal-organic compound needs to be placed in a thermostat with a temperature control accuracy of less than 0.2°C.

[0003] Thermostatic water tank equipment is a device that keeps the temperature of metal organic compounds constant through constant temperature water. However, the Hengwei water tank equipment commonly used in the industry to keep the temperature of metal organic compounds constant still has performance deficiencies in actual use, and the performance of the entire thermostatic water tank equipment needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide a constant temperature water tank device, which can improve the working performance of the constant temperature water tank device to a certain extent.

[0005] In order to solve the above technical problems, the utility model provides a constant temperature water tank device, comprising:

[0006] Water bath;

[0007] A water level sensor for detecting the water level in the water bath;

[0008] A temperature regulating device whose input end and output end are connected to the water bath through a first pipe and a second pipe respectively;

[0009] a water supply pipeline connected to the input end of the temperature regulating device, wherein the water supply pipeline is provided with a first valve;

[0010] a drainage pipe connected to the water bath, wherein a second valve is disposed on the drainage pipe;

[0011] When the water level sensor measures that the water level in the water bath is less than a low water level threshold, the first valve opens; when the water level sensor measures that the water level in the water bath is higher than a high water level threshold, the second valve opens.

[0012] In an optional embodiment of the present application, it further includes a water storage device and a cooling circulation pipeline having two ends respectively connected to a water outlet and a water inlet of the water storage device; the cooling circulation pipeline is arranged inside the temperature regulating device and is used to perform heat exchange with water flowing through the output end of the temperature regulating device;

[0013] The input end of the water replenishment pipeline is connected to the water outlet of the water storage device.

[0014] In an optional embodiment of the present application, the temperature regulating device is a temperature control device that controls the temperature of water flowing through the temperature regulating device to be between 0°C and 30°C.

[0015] In an optional embodiment of the present application, a filter is also provided at the water outlet of the water storage device.

[0016] In an optional embodiment of the present application, the output end of the drainage pipe is connected to a heat preservation water tank;

[0017] The heat-insulating water tank is connected to the input end of the water supply pipeline.

[0018] In an optional embodiment of the present application, the water level sensor includes a high water level sensor and a low water level sensor; the high water level sensor is located at a height corresponding to the high water level threshold in the water bath; the low water level sensor is located at a height corresponding to the low water level threshold in the water bath.

[0019] In an optional embodiment of the present application, the input end of the first pipeline extends into the water bath and is connected to a water pump.

[0020] In an optional embodiment of the present application, a first temperature sensor is further provided in the water bath; and a second temperature sensor is provided at the output end of the temperature regulating device.

[0021] In an optional embodiment of the present application, an agitator is provided in the water bath.

[0022] In an optional embodiment of the present application, the output end of the second pipeline includes a main pipeline and multiple branch pipelines; the input end of the main pipeline is connected to the output end of the temperature regulating device; the output end of the main pipeline is connected to the input end of each of the branch pipelines; the output end of each of the branch pipelines is respectively connected to water inlets at multiple different positions on the water bath.

[0023] The utility model provides a constant temperature water tank device, comprising: a water bath; a water level sensor for detecting the water level in the water bath; a temperature regulating device whose input end and output end are respectively connected to the water bath through a first pipe and a second pipe; a water supply pipe connected to the input end of the temperature regulating device, on which a first valve is arranged; a drainage pipe connected to the water bath, on which a second valve is arranged; when the water level sensor measures that the water level in the water bath is less than a low water level threshold, the first valve is opened; when the water level sensor measures that the water level in the water bath is higher than a high water level threshold, the second valve is opened.

[0024] The temperature regulating device in the constant temperature water bath equipment provided by the present application is placed outside the water bath, and the water bath and the temperature regulating device are connected by a first pipe and a second pipe, so that the water in the water bath can flow out to the temperature regulating device for conduction temperature control, and then flow back to the water bath, thereby providing heat for the water bath to ensure that the water temperature in the water bath is constant; and compared with the temperature control method of directly setting a heating structure inside the water bath, setting a temperature regulating device outside the water bath can better ensure the uniformity of water temperature distribution in the entire water bath; on this basis In particular, a water level sensor is arranged in the water bath to measure the water level in the water bath, so that it can be found in time that the water level in the water bath is too high or too low; and the water bath is also connected with a water supply pipe and a drainage pipe. The water supply pipe can replenish and inject more water into the water bath when the water volume in the water bath is insufficient, and the drainage pipe can discharge the excess water in the water bath when the water level in the water bath is too high; thereby ensuring that the water volume in the water bath can be maintained within a reasonable and stable range, thereby improving the working performance of the constant temperature water bath equipment to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 This is a schematic diagram of the structure of the constant temperature water tank equipment provided in the embodiment of the present application. DETAILED DESCRIPTION

[0027] At present, the industry's focus on the constant temperature water tank equipment that maintains a constant temperature for metal organic compounds is more on whether the constant temperature water tank equipment can maintain the stability of water temperature; not much attention has been paid to the amount of water in the constant temperature tank.

[0028] In actual applications, the water in the water bath of the constant temperature water bath equipment will evaporate less over time, and when the number and size of the source bottles of metal organic compounds that need to maintain a constant temperature in the water bath are different, the water level in the water bath will also change significantly to a certain extent. However, there are currently no relevant measures in the industry to maintain a stable amount of water in the water bath. When the water level in the water bath is insufficient, the water level is manually increased. This is not only cumbersome to operate, but also requires special manpower to check the water level in the water bath in real time. Insufficient water in the water bath may also affect the stability of the temperature of the source bottles in the water bath.

[0029] Therefore, the present application provides a constant temperature water bath device that can effectively maintain the stability of water temperature and water volume in the water bath.

[0030] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0031] like Figure 1 As shown, Figure 1 This is a schematic diagram of the structure of the constant temperature water tank equipment provided in the embodiment of the present application.

[0032] In a specific embodiment of the present application, the constant temperature water tank device may include:

[0033] Water bath 10;

[0034] A water level sensor 20 for detecting the water level in the water bath 10;

[0035] A temperature regulating device 30 whose input end and output end are connected to the water bath 10 through a first pipe 31 and a second pipe 32 respectively;

[0036] A water supply pipe 41 connected to the input end of the temperature regulating device 30, and a first valve 43 is provided on the water supply pipe 41;

[0037] a drainage pipe 42 connected to the water bath 10, and a second valve 44 is provided on the drainage pipe 42;

[0038] When the water level sensor 20 measures that the water level in the water bath 10 is less than the low water level threshold, the first valve 43 opens; when the water level sensor 20 measures that the water level in the water bath 10 is higher than the high water level threshold, the second valve 44 opens.

[0039] like Figure 1 As shown, the water bath 10 in this embodiment is a water bath structure that carries constant temperature water and maintains a constant temperature for the source bottle immersed in the constant temperature water. Because the water in the water bath 10 will continuously dissipate heat to the environment, in order to compensate for the dissipated heat, in this embodiment, the water bath 10 is connected to a temperature adjustment device 30 through a first pipe 31 and a second pipe 32, as shown in FIG. Figure 1As shown, one end of the first pipe 31 extends into the water bath 10, and a water pump 70 is also provided on the first pipe 31 to provide power for extracting water from the water bath 10, so that the water in the water bath 10 can flow out through the first pipe 31 and flow into the temperature regulating device 30; the temperature regulating device 30 can heat the water flowing out of the water bath 10, and the heated water flows into the water bath 10 through the second pipe 32, thereby continuously providing heat energy to the water in the water bath 10. Figure 1 As shown, in this embodiment, the temperature regulating device 30 is arranged outside the water bath 10, and only a part of the water in the water bath 10 is heated each time so that the heated water flows back into the water bath 10. Compared with heating methods such as directly setting a heating structure in the water bath 10, the heating method in this embodiment can well avoid the problem of excessive water temperature in the area around the heating structure, thereby improving the uniformity of water temperature distribution in the water bath 10 to a certain extent.

[0040] It should be noted that the temperature regulating device in this embodiment does not necessarily heat the water in the water bath 10, but may also cool it; that is, the water temperature in the water bath 10 may be too high. Of course, no matter whether the water temperature in the water bath 10 is too high or too low, the temperature regulating device 30 only needs to ensure that the water temperature of the water flowing out of the temperature regulating device is controlled at 0°C to 30°C.

[0041] In addition, in order to ensure that the water temperature in the water bath 10 can be stably maintained within a required temperature range, a first temperature sensor may be provided in the water bath 10 , and a second temperature sensor may be provided at the output end of the temperature regulating device 30 .

[0042] It is understandable that there may be multiple first temperature sensors in the water bath 10, and each first temperature sensor is set at multiple different positions in the water bath 10, thereby achieving more comprehensive monitoring of the temperatures of multiple different positions in the water bath 10. The heated water flowing out of the output end of the temperature regulating device 30 can directly affect the water temperature height and stability in the water bath 10. Therefore, the temperature of the water at the output end of the temperature regulating device 30 is monitored, so that the heating power of the temperature regulating device 30 can be more accurately controlled, and then the water temperature of the water bath 10 can be controlled.

[0043] In addition, in order to ensure that the water heated by the temperature regulating device 30 can be more fully mixed with the water in the water bath 10 after being injected into the water bath 10, thereby ensuring the uniformity of the water temperature, an agitator 60 can be further provided in the water bath 10. The agitator 60 can fully stir and mix the water in the water bath 10, so that the water temperature distribution in the water bath 10 can be uniform.

[0044] Optionally, to achieve sufficient mixing between the water in the water bath 10 and the water heated by the temperature regulating device 30, in addition to using the agitator 60 for sufficient stirring, in another optional embodiment of the present application, the output end of the second pipe 32 includes a main pipe and multiple branch pipes; the input end of the main pipe is connected to the output end of the temperature regulating device 30; the output end of the main pipe is connected to the input end of each branch pipe; the output end of each branch pipe is respectively connected to water inlets at multiple different positions on the water bath 10.

[0045] Therefore, after the water heated by the temperature regulating device 30 flows into the water bath 10, it can be dispersed and flow into different areas of the water bath 10 through multiple water inlets at different positions on the water bath 10, rather than being concentrated in one water inlet to flow into the water bath 10. This can also improve the uniformity of mixing between the heated water and the original water in the water bath 10 to a certain extent.

[0046] Furthermore, in order to ensure the stability of the water level in the water bath 10, a water level sensor 20, a water supply pipe 41 and a drainage pipe 42 are further provided in this embodiment. The water level in the water bath 10 can be measured in real time by the water level sensor 20. When the water level measured by the water level sensor 20 is lower than the low water level threshold, it means that the water level in the water bath 10 is too low at this time. The first valve 43 on the water supply pipe 41 can be opened to allow external water to flow into the water bath 10 through the water supply pipe 41 to increase the water level in the water bath 10. As the amount of water added to the water bath 10 increases, after the water level in the water bath 10 rises to a value higher than the low water level threshold, the water can be added to the water bath 10 for a set time, for example, the water can be added to the water bath 10 for another 20 seconds, and then the first valve 43 can be closed to ensure that the water level in the water bath 10 can meet the requirements.

[0047] When the water level measured by the water level sensor 20 is higher than the high water level threshold, it means that the water level in the water bath 10 is too high. At this time, the second valve 44 on the drainage pipe 42 can be opened to lower the water level in the water bath 10; similar to the above-mentioned process of replenishing water, when the water level in the water bath 10 drops to the position corresponding to the high water level threshold, the second valve 44 can be kept open for 10 seconds and then closed to maintain the stability of the water level in the water bath 10. The first valve 43 and the second valve 44 can be solenoid valves or other valves that can be automatically controlled to open and close, and this application does not make specific restrictions on this.

[0048] It should be noted that, in the process of the water supply pipe 41 replenishing water into the water bath 10, in order to avoid the water replenished into the water bath 10 in the water supply pipe from disturbing the uniformity of the water temperature in the water bath 10, in this embodiment, the water in the water supply pipe 41 is further heated by the temperature adjustment device 30 before flowing into the water bath 10. Therefore, the output end of the water supply pipe 41 is not directly connected to the water bath 10, but is injected into the water bath 10 after being heated to the same temperature as the constant temperature water in the water bath 10 by the temperature adjustment device 30, thereby ensuring that the stability of the water temperature in the water bath 10 is maintained on the basis of raising the water level in the water bath 10.

[0049] Based on the above discussion, in another optional embodiment of the present application, the constant temperature water tank device may further include:

[0050] A water storage device 51 and a cooling circulation pipe 52 whose two ends are respectively connected to the water outlet and the water inlet of the water storage device 51; the cooling circulation pipe 52 is arranged inside the temperature regulating device 30 and is used for heat exchange with the water flowing through the output end of the temperature regulating device 30;

[0051] The input end of the water supply pipe 41 is connected to the water outlet of the water storage device 51 .

[0052] The water storage device 51 in this embodiment may specifically be a device in a plant cooling circulating water system.

[0053] It is understandable that in the process of the temperature regulating device 30 heating the water flowing into it, in order to ensure the effectiveness of heating, the water is generally heated to a relatively high temperature to avoid the problem of insufficient water heating temperature; but water with too high a temperature flowing into the water bath 10 is not conducive to maintaining the stability of the water temperature in the water bath 10. To this end, the present embodiment further provides a cooling water circulation loop consisting of a water storage device 51 and a cooling circulation pipe 52, so that the cooling water in the water storage device 51 flows out from the water outlet of the water storage device 51 into the cooling circulation pipe 52 built into the temperature regulating device 30, and performs heat exchange with the water that needs to be output from the output end after being heated in the temperature regulating device 30, so that the heated water in the temperature regulating device 30 is cooled before being output to the water bath 10, so that the temperature of the water finally output from the temperature regulating device 30 can better maintain the stability of the water temperature in the water bath 10.

[0054] Of course, the above is explained using the temperature regulating device 30 as an example of a temperature control device for heating the water in the water bath 10. When the temperature regulating device 30 cools the water in the water bath 10, the cooling water in the cooling water circulation pipe 52 can also appropriately heat the water after being cooled by the temperature regulating device to a certain extent, so that the water finally output from the temperature regulating device 30 can better maintain the stability of the water temperature in the water bath 10.

[0055] On this basis, although the temperature of the cooling water in the cooling water circulation loop is generally the ambient temperature, which is relatively low compared to the water temperature in the water bath 10; but in actual applications, the cooling water absorbs the thermal energy of the water heated in the temperature regulating device 30, and the water temperature is generally slightly higher than the ambient temperature; for this reason, in order to further utilize the thermal energy of the cooling water in the present application, the input end of the water supply pipe 41 and the water outlet of the water storage device 51 are further connected, so that when more water needs to be added to the water bath 10, the cooling water in the water storage device 51 is directly used as the source of make-up water, thereby reducing the energy consumption required for heating the make-up water by the temperature regulating device 30 to a certain extent.

[0056] Of course, if the water in the water bath 10 needs to be cooled, the low-temperature cooling water can also reduce the energy consumption required by the temperature regulating device 30 to cool the supplementary water to a certain extent, which is not described in detail in this application.

[0057] In addition, in order to further prevent the cooling water from containing impurities, a filter 53 may be provided at the water outlet of the water storage device 51 so that the cooling water is filtered before flowing to the temperature adjustment device 30 for heating.

[0058] Of course, the source of the supplementary water injected into the water bath 10 in the present application is not limited to the only source of cooling water. As mentioned above, when the water level in the water bath 10 is too high, it is necessary to discharge the water in the water bath 10 through the drainage pipe 42; obviously, the water temperature of the water discharged from the drainage pipe 42 should be equivalent to the water temperature in the water bath 10; for this reason, in another optional embodiment of the present application, the output end of the drainage pipe 42 can be further connected to an insulated water tank 80; and the insulated water tank 80 is connected to the input end of the water supply pipe 41.

[0059] In this embodiment, the water discharged from the drainage pipe 42 is insulated and stored in an insulated water tank 80, so as to retain its thermal energy to the greatest extent; on this basis, if the water level in the water bath 10 drops and more water needs to be added, the control valve 81 on the pipe connecting the insulated water tank 80 and the water supply pipe 42 can be opened, and the water stored in the insulated water tank 80 is used as the source of supplementary water to flow into the water bath 10, thereby realizing the recycling of the water discharged from the water bath 10 to a certain extent, and also realizing the recycling of the thermal energy of the water discharged from the water bath 10.

[0060] It can be understood that in actual applications, both the water stored in the insulated water tank 80 and the cooling water can be used as sources of supplementary water, and which portion of the water needs to be injected into the water bath 10 can be determined based on the water temperature and water volume of the water in the insulated water tank 80 and the cooling water in the water storage device 51, and no specific restrictions are made in this application.

[0061] Based on the above discussion, it is obvious that the stirring of the stirrer 60 in the water bath 10 or other reasons causes the water surface in the water bath 10 to generally not be a horizontal water surface, but a water surface with water waves. Obviously, in this case, it is impossible to use a liquid level meter to detect the liquid level height in the water bath 10. For this reason, the water level sensor 20 used to detect the water level height in the water bath 10 in the present application may specifically include:

[0062] A high water level sensor 21 and a low water level sensor 22 ; the high water level sensor 21 is located at a height corresponding to a high water level threshold in the water bath 10 ; the low water level sensor 22 is located at a height corresponding to a low water level threshold in the water bath 10 .

[0063] In order to more accurately measure whether the water level in the water bath 10 is between the high water level threshold and the low water level threshold in the present embodiment, a high water level sensor 21 and a low water level sensor 22 are provided at positions corresponding to the high water level threshold and the low water level threshold in the water bath 10, respectively; thereby, when the water level in the water bath 10 rises to the position of the high water level sensor 21, it can be sensed and detected by the high water level sensor 21, and when the water level drops below the low water level sensor 22, it can also be detected by the low water level sensor 22, thereby, even if there are always water waves on the water surface in the water bath 10, it does not affect the detection of whether the water level exceeds the interval between the high water level threshold and the low water level threshold, thereby ensuring the accuracy of the water level sensing detection.

[0064] To summarize, in the thermostatic water bath equipment of the present application, the temperature regulating device is placed outside the water bath, and the water in the water bath can flow out to the temperature regulating device for heat conduction temperature control, and then flow back into the water bath to ensure that the water temperature in the water bath is constant; compared with the temperature control method of directly setting a heating structure inside the water bath, setting a temperature regulating device outside the water bath can better ensure the uniformity of water temperature distribution in the entire water bath; on this basis, the water bath is also connected to a water supply pipe and a drainage pipe, and the water supply pipe can replenish and inject more water into the water bath when the water amount in the water bath is insufficient, and the drainage pipe can discharge excess water in the water bath when the water level in the water bath is too high; thereby ensuring that the water amount in the water bath can be maintained within a reasonable and stable range, thereby improving the working performance of the thermostatic water bath equipment to a certain extent.

[0065] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the term "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment that includes a series of elements are inherent to the elements. In the absence of more restrictions, the elements limited by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or equipment that includes the elements. In addition, the above-mentioned technical solution provided in the embodiment of the present application is consistent with the corresponding technical solution in the prior art in principle, and the part is not described in detail, so as not to repeat too much.

[0066] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A constant temperature water tank device, characterized in that: include: Water bath; A water level sensor for detecting the water level in the water bath; A temperature regulating device whose input end and output end are connected to the water bath through a first pipe and a second pipe respectively; a water supply pipeline connected to the input end of the temperature regulating device, wherein the water supply pipeline is provided with a first valve; a drainage pipe connected to the water bath, wherein a second valve is disposed on the drainage pipe; When the water level sensor measures that the water level in the water bath is less than a low water level threshold, the first valve opens; when the water level sensor measures that the water level in the water bath is higher than a high water level threshold, the second valve opens.

2. The constant temperature water tank device according to claim 1, characterized in that: It also includes a water storage device and a cooling circulation pipeline with two ends respectively connected to the water outlet and the water inlet of the water storage device; the cooling circulation pipeline is arranged inside the temperature regulating device and is used to perform heat exchange with water flowing through the output end of the temperature regulating device; The input end of the water replenishment pipeline is connected to the water outlet of the water storage device.

3. The constant temperature water tank device according to claim 2, characterized in that: The temperature regulating device is a temperature control device that controls the temperature of water flowing through the temperature regulating device to be between 0°C and 30°C.

4. The constant temperature water tank device according to claim 2, characterized in that: The water outlet of the water storage device is also provided with a filter.

5. The constant temperature water tank device according to any one of claims 1 to 4, characterized in that: The output end of the drainage pipe is connected to a heat preservation water tank; The heat-insulating water tank is connected to the input end of the water supply pipeline.

6. The constant temperature water tank device according to claim 1, characterized in that: The water level sensor includes a high water level sensor and a low water level sensor; the high water level sensor is located at a height corresponding to the high water level threshold in the water bath; the low water level sensor is located at a height corresponding to the low water level threshold in the water bath.

7. The constant temperature water tank device according to claim 1, characterized in that: The input end of the first pipeline extends into the water bath and is connected to a water pump.

8. The constant temperature water tank device according to claim 1, characterized in that: A first temperature sensor is also arranged in the water bath; and a second temperature sensor is arranged at the output end of the temperature regulating device.

9. The constant temperature water tank device according to claim 1, characterized in that: A stirrer is arranged in the water bath.

10. The constant temperature water tank equipment according to claim 1 or 9, characterized in that: The output end of the second pipeline includes a main pipeline and multiple branch pipelines; the input end of the main pipeline is connected to the output end of the temperature regulating device; the output end of the main pipeline is connected to the input end of each of the branch pipelines; the output end of each of the branch pipelines is respectively connected to water inlets at multiple different positions on the water bath.

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