Smell detection device for drinking water

Abstract

The utility model relates to an odor detection device for drinking water, which comprises a box body, a water inlet pipeline and a water outlet pipeline, the box body is provided with a closed space, a spraying assembly and an overflow box are arranged in the box body, and the spraying assembly comprises a mechanical arm and a nozzle; one end of the water inlet pipeline is connected with a water source, the other end of the water inlet pipeline is communicated with the mechanical arm, the mechanical arm is of a hollow structure, the water inlet pipeline is further provided with a heating assembly, and drinking water from the water source sequentially passes through the heating assembly and the mechanical arm and then is sprayed out from the nozzle; the overflow box is arranged below the spray head, the water outlet pipeline is communicated with the bottom of the overflow box, the overflow box is further provided with an overflow pipe at the preset liquid level height, one end of the overflow pipe is communicated with the overflow box, and the other end of the overflow pipe extends downwards and is communicated with the water outlet pipeline. According to the scheme, the drinking water is sprayed out through the spray head for detection, so that the odor is more uniformly dispersed, the sprayed drinking water forms a loop through the overflow box for recycling, overflow of the sprayed drinking water is prevented, and the odor detection is more efficient.

Description

Technical Field

[0001] The utility model relates to the field of drinking water treatment equipment, in particular to an odor detection device for drinking water. Background Art

[0002] Testing the smell and taste of raw tap water, process water and factory water is a simple way to determine whether the water quality is polluted. my country has issued several relevant standards (such as "Sanitary Standards for Drinking Water (GB5749-2022)", "Standards for Drinking Water Source Quality (CJ3020-93)", etc.), which have set indicators for the smell and taste of water. Odor detection has become an indispensable water quality monitoring process in the tap water production process. However, the existing detection mainly relies on manual water collection, cold olfactory or hot olfactory after heating, that is, the water quality sample to be tested is placed in a sampling bottle, and then the odor detection is performed manually, which has problems such as inconvenient sampling operation and low efficiency.

[0003] The Chinese utility model patent with the publication number CN208297486U discloses an auxiliary smell detection device, including a water tank composed of a connected water inlet area, a heating area, a water outlet area and a steam containing area in sequence, wherein the water inlet area and the water outlet area are respectively provided with a water inlet and a water outlet, and the elevation of the water outlet is higher than the elevation of the water inlet, the heating area is located between the water inlet area and the water outlet area, and is equipped with an electric heating sensor, and the electric heating sensor can control its heating power through the PLC automatic controller connected thereto, the steam containing area is higher than the elevation of the water outlet as a whole, and the side wall of the steam containing area is provided with a gas smell port. This scheme realizes the automated control of many process operations in water quality smell detection, and at the same time introduces the quantitative detection of water body smell markers, which can combine the quantitative detection data with the subjective judgment of smell to more accurately judge the water body pollution or water quality treatment effect; it greatly reduces the labor intensity of the detection personnel and increases the accuracy of water quality smell detection.

[0004] However, this solution relies on fully automated control, has a complex equipment structure and is costly. Utility Model Content

[0005] In view of the above problems, the utility model provides an odor detection device for drinking water, which solves the problems of inconvenient sampling operation, low efficiency or high equipment cost in the existing technical solutions for odor detection of drinking water.

[0006] To achieve the above-mentioned purpose, the present application provides a smell and taste detection device for drinking water, the device comprising a box, a water inlet pipe and a water outlet pipe, the box having a closed space, a spray assembly and an overflow box being arranged in the box, the spray assembly comprising a mechanical arm and a spray head, the mechanical arm being transmission-connected to the spray head, and the spray direction of the spray head being arranged downward;

[0007] One end of the water inlet pipeline is connected to the water source, and the other end is connected to the mechanical arm. The mechanical arm is a hollow structure. The water inlet pipeline is also provided with a heating component. The drinking water from the water source flows through the heating component and the mechanical arm in sequence and then is sprayed out from the nozzle.

[0008] The overflow box is arranged below the nozzle, the water outlet pipeline is connected to the bottom of the overflow box, a first control valve is also arranged on the water outlet pipeline, and the overflow box is also provided with an overflow pipe at a preset liquid level height, one end of the overflow pipe is connected to the overflow box, and the other end extends downward and is connected to the water outlet pipeline.

[0009] Furthermore, a protective cover is provided in the box body, and the protective cover is provided at the upper opening of the overflow box to limit the liquid area sprayed by the nozzle.

[0010] Furthermore, the box body includes a main body and a door, wherein the door is hinged to one side of the main body, and when the door is closed, the door is placed in a receiving groove of the main body.

[0011] Furthermore, the box door is made of transparent material.

[0012] Furthermore, the heating component includes a heating sensor and a heating controller, the heating sensor and the heating controller are electrically connected, and the heating controller is used to control the opening and closing of the heating sensor or adjust the heating temperature of the heating sensor, and the heating temperature range is 20-50°C.

[0013] Furthermore, the device also includes a timer and a main controller, a third control valve is provided on the water inlet pipeline, and the main controller is electrically connected to the first control valve and the third control valve respectively.

[0014] Furthermore, the nozzle can rotate relative to the mechanical arm to adjust the spraying direction of the nozzle.

[0015] Furthermore, there are multiple nozzles, and the multiple nozzle arrays are configured on the robotic arm. A second control valve is also provided between each nozzle and the robotic arm.

[0016] Furthermore, the robotic arm includes a first connecting arm, a second connecting arm and a third connecting arm. The first connecting arm and the second connecting arm are arranged laterally and can be extended and retracted in the laterally direction respectively. The third connecting arm is arranged longitudinally between the first connecting arm and the second connecting arm and can be extended and retracted in the longitudinal direction.

[0017] Furthermore, it also includes a main controller. The heating component is provided with a heating controller. The water inlet pipeline is also provided with a third control valve. The main controller is electrically connected to the first control valve, the third control valve and the heating controller respectively.

[0018] Different from the prior art, the odor detection device for drinking water provided by the utility model comprises a box body, a water inlet pipe and a water outlet pipe, the box body has a closed space, a spray assembly and an overflow box are arranged in the box body, the spray assembly comprises a mechanical arm and a nozzle, the mechanical arm is connected to the nozzle in a transmission manner, and the spray direction of the nozzle is arranged downward; one end of the water inlet pipe is connected to a water source, and the other end is connected to the mechanical arm, the mechanical arm is a hollow structure, and a heating assembly is also arranged in the water inlet pipe, and the drinking water flow from the water source passes through the heating assembly and the mechanical arm in turn and is sprayed from the nozzle; the overflow box is arranged below the nozzle, the water outlet pipe is connected to the bottom of the overflow box, a first control valve is also arranged on the water outlet pipe, and an overflow pipe is also arranged on the overflow box at a preset liquid level height, one end of the overflow pipe is connected to the overflow box, and the other end extends downward and is connected to the water outlet pipe. The above scheme sprays the drinking water to be tested through a nozzle, which can make the odor dispersion more uniform, and the sprayed drinking water forms a loop for recovery through an overflow box to prevent overflow, which can make the entire odor detection process more convenient and efficient.

[0019] The above-mentioned records related to the content of the utility model are only an overview of the technical solution of the utility model. In order to enable ordinary technicians in the field to more clearly understand the technical solution of the utility model, and then implement it according to the text of the specification and the contents recorded in the drawings, and in order to make the above-mentioned purpose and other purposes, features and advantages of the utility model easier to understand, the specific implementation method and drawings of the utility model are explained below. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, characteristics and effects of the specific embodiments of the present invention and other related contents, and shall not be considered as limitations of the present invention.

[0021] In the drawings of the specification:

[0022] Figure 1 This is a schematic diagram of a device for detecting odor and taste of drinking water according to a specific embodiment of the utility model;

[0023] Figure 2 This is a schematic structural diagram of a spray assembly involved in a specific implementation of the utility model;

[0024] Figure 3 This is a schematic structural diagram of a spray assembly according to another specific embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of a module of a heating component according to a specific embodiment of the present utility model;

[0026] Figure 5 This is a schematic diagram of the connection between the main controller and other modules involved in a specific implementation of the utility model.

[0027] The reference numerals in the above drawings are described as follows:

[0028] 1. Box body;

[0029] 2. Water inlet pipeline;

[0030] 21. The third control valve;

[0031] 3. Nozzle;

[0032] 31. Second control valve;

[0033] 4. Robotic arm;

[0034] 41. A first connecting arm;

[0035] 42. second connecting arm;

[0036] 43. The third connecting arm;

[0037] 5. Heating component;

[0038] 51. Heating sensor;

[0039] 52. Heating controller;

[0040] 6. The first control valve;

[0041] 7. Overflow box;

[0042] 8. Overflow pipe;

[0043] 9. Water outlet pipe;

[0044] 10. Protective cover;

[0045] 11. Main controller;

[0046] 12. Timer;

[0047] 13. Spray assembly. DETAILED DESCRIPTION

[0048] In order to explain in detail the possible application scenarios, technical principles, specific solutions that can be implemented, and the purposes and effects that can be achieved of the present invention, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present invention, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present invention.

[0049] Reference to "embodiment" in this document means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The word "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present invention, as long as there is no technical contradiction or conflict, the various technical features mentioned in each embodiment can be combined in any way to form a corresponding implementable technical solution.

[0050] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which the present invention belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit the present invention.

[0051] In the description of the present invention, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in a logical relationship of "or".

[0052] In the present invention, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0053] Without further restrictions, in the present invention, the words "include", "comprises", "has" or other similar expressions used in sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0054] Similar to the understanding in the Examination Guidelines, in the present invention, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of the present invention, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0055] In the description of the embodiments of the present invention, the space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present invention or facilitating the reader's understanding, and do not indicate or imply that the referred device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0056] Unless otherwise expressly specified or limited, in the description of the embodiments of the present utility model, the terms "install", "connect", "connect", "fix", "set" and the like used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the technical field of the present utility model, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to the specific circumstances.

[0057] See also Figure 1 The present application provides a smell and taste detection device for drinking water, the device comprising a box 1, a water inlet pipe 2 and a water outlet pipe 9, the box 1 having a closed space, a spray assembly 13 and an overflow box 7 are arranged in the box 1, the spray assembly 13 comprises a mechanical arm 4 and a spray head 3, the mechanical arm 4 is in transmission connection with the spray head 3, and the spray direction of the spray head 3 is arranged downward;

[0058] One end of the water inlet pipe 2 is connected to the water source, and the other end is connected to the mechanical arm 4. The mechanical arm 4 is a hollow structure. The water inlet pipe 2 is also provided with a heating component 5. The drinking water from the water source passes through the heating component 5 and the mechanical arm 4 in sequence and then is sprayed out from the nozzle.

[0059] The overflow box 7 is arranged below the nozzle 3, the water outlet pipe 9 is connected to the bottom of the overflow box 7, a first control valve 6 is also arranged on the water outlet pipe 9, and the overflow box 7 is also provided with an overflow pipe 8 at a preset liquid level height, one end of the overflow pipe 8 is connected to the overflow box 7, and the other end extends downward and is connected to the water outlet pipe 9.

[0060] Furthermore, the box body 1 includes a main body and a door, the door is hinged to one side of the main body, and when the door is closed, the door is placed in the receiving groove of the main body. In this way, when odor detection is required, the detection personnel can control the door to open manually or remotely to smell the odor emitted from the box body 1.

[0061] Generally, the olfactory test of water quality is divided into cold odor and hot odor. The cold odor test (Cold Odor Test) detects whether there is odor or pollutants in the water sample by smell. The cold odor test is usually carried out at room temperature, and the water sample is smelled directly to detect whether there is any abnormal odor, such as the odor of corruption, chemicals or other sources of pollution. This method is simple and easy to use, but it is mainly used for preliminary judgment and cannot provide accurate information on the type and concentration of pollutants. The hot odor test (Hot Odor Test) is an olfactory test performed after heating the water sample. Heating the water sample may release more volatile compounds, making the odor more significant, which is helpful for detecting low concentrations of odorous substances. The hot odor test is more sensitive than the cold odor test, but it is also only a preliminary sensory detection method.

[0062] Taking cold sniffing as an example, first, the water inlet pipeline can be opened and the heating component can be closed. The drinking water flow from the water source is sequentially sprayed from the nozzle after passing through the heating component 5 and the mechanical arm 4, and is received by the overflow box located below the nozzle. Since the heating component is in a closed state, the drinking water flowing through will not be heated at this time. When the water level in the overflow box 7 reaches the preset liquid level height, the water will flow out of the water outlet pipeline through the overflow pipe to ensure that the water does not overflow out of the box. The preset liquid level height can be set according to actual needs, preferably set to a height position of 1 / 4-1 / 3 of the total height of the overflow box, and close to the top of the overflow box. After the first preset time period of continuous water flow (such as 20-40 minutes, preferably 30 minutes), the volatile odor in the box is enriched and concentrated by the box, and the odor concentration increases, which improves the sensitivity of smelling and makes it easier to smell. Then the detection personnel can open the door of the box to smell.

[0063] The process of hot sniffing is generally similar to that of cold sniffing, which will not be elaborated here. The difference is that when performing hot sniffing, the heating component 5 is in the on state, and the inspector opens the box 1 to smell the heated water.

[0064] Through the above scheme, since the water to be tested is collected in the overflow box after being sprayed out by the nozzle, and the box as a whole is a closed space, when the tested water has an odor, the odor volatilized by the water is enriched and concentrated by the box, and the odor concentration increases. Compared with the sampling method using a sampling bottle, it can not only improve the sensitivity of the smell, making the odor easier to smell, but also the inspector can open the box door to conduct odor detection, which can realize online detection and improve detection efficiency.

[0065] In some embodiments, Figure 1 As shown, a protective cover 10 is also provided in the box body 1, and the protective cover 10 is provided at the upper opening of the overflow box to limit the liquid area sprayed by the nozzle 3. Specifically, the protective cover can be a circle of panels surrounding the top of the overflow box, and the shape of the panels is an inverted cone with a large top and a small bottom. The top of the panels is larger than the height of the nozzle, so as to ensure as much as possible that the water sprayed by the nozzle will not splash to the area outside the overflow box. The material of the protective cover is preferably a waterproof material, and it is detachably locked with the upper opening of the overflow box, which is convenient for subsequent removal for cleaning or replacement, and reduces maintenance costs. The detachable method can be threaded fixing, or plug-in and other methods.

[0066] In some embodiments, the box door is made of transparent material, so that the inspector can see the water level inside the box in real time without opening the box door, and handle any abnormality in a timely manner.

[0067] In some embodiments, Figure 4 As shown, the heating assembly 5 includes a heating sensor 51 and a heating controller 52, the heating sensor 51 and the heating controller 52 are electrically connected, and the heating controller 52 is used to control the opening and closing of the heating sensor 51 or adjust the heating temperature of the heating sensor 51, and the heating temperature range is 20-50° C. In this way, the sensor of the heater is adjusted by the heating controller, thereby adjusting the temperature of the water flow in the water inlet pipeline to meet the thermal smell requirements of different temperature scenes.

[0068] In some embodiments, the nozzle 3 can rotate relative to the mechanical arm 4 to adjust the spraying direction of the nozzle. In this way, the nozzle can be adjusted to swing back and forth to increase the volatilization speed of the sprayed water flow odor, which is convenient for subsequent smelling.

[0069] In some embodiments, Figure 3 As shown, there are multiple nozzles 3, and multiple nozzles 3 are arrayed on the mechanical arm 4, and a second control valve 31 is also provided between each nozzle 3 and the mechanical arm 4. In this way, the opening and closing of the second control valves corresponding to different nozzles can be controlled to achieve control of parameters such as the flow rate and position of the sprayed water.

[0070] In some embodiments, Figure 2 and Figure 3As shown, the mechanical arm 4 includes a first connecting arm 41, a second connecting arm 42 and a third connecting arm 43. The first connecting arm 41 and the second connecting arm 42 are arranged horizontally and can be extended and retracted in the horizontal direction respectively, and the third connecting arm 43 is arranged vertically between the first connecting arm 41 and the second connecting arm 42 and can be extended and retracted in the vertical direction. In this way, the inspector can adjust the position of the spraying area by adjusting the extension length of the first connecting arm or the second connecting arm, or adjusting the extension height of the third connecting arm, so as to make it more convenient for him to smell the odor.

[0071] In some embodiments, Figure 5 As shown, the device also includes a timer 12 and a main controller 11. A third control valve 21 is provided on the water inlet pipeline 2. The main controller 11 is electrically connected to the timer 12, the first control valve 6, the second control valve 31, the third control valve 21 and the heating controller 52 respectively.

[0072] A timer usually refers to a circuit or chip that can generate a signal at a specific time interval or perform a specific time counting task. The main controller can use an MCU or PLC control chip.

[0073] MCU (Microcontroller Unit) is the abbreviation of microcontroller unit, also known as microcontroller. It is a single-chip computer system that integrates a microprocessor core, memory, and various input / output (I / O) peripherals. MCU is often used in embedded systems to control the operation of various devices and systems. Microcontrollers are usually composed of components such as CPU core, memory (including flash memory, RAM, etc.), input / output interface, timer / counter, analog to digital converter (ADC), digital to analog converter (DAC). They can perform pre-programmed tasks such as controlling electronic devices, processing input signals, driving motors, communicating, etc.

[0074] PLC (Programmable Logic Controller) is the abbreviation of programmable logic controller. PLC is usually composed of a central processing unit (CPU), input / output modules, memory, communication interface, etc. They can receive various input signals (such as sensor signals, button status, etc.), and control various output devices (such as actuators, motors, valves, etc.) after logical processing, so as to realize the automatic control of the production process. PLC programs are written in specific programming languages ​​(such as LadderDiagram, Structured Text, etc.). These programs describe the logical relationship between different input signals and the corresponding output actions.

[0075] The first control valve, the second control valve and the third control valve are electric valves, which are valves that are opened and closed by electric actuators and are used to control the flow of liquid (usually water) in the pipeline system. These electric valves usually consist of two parts: an electric actuator and a valve body. The electric actuator is a key component for controlling the opening and closing of the valve. It usually consists of an electric motor and a transmission device, which can control the opening, closing or adjustment of the valve according to external control signals or preset conditions. The design of the electric actuator can adopt different motor types according to specific application requirements, such as DC motors, AC motors, etc., and is equipped with corresponding control circuits to achieve precise valve control. The valve body is the main part of the valve, usually consisting of a valve seat, a valve body and a valve cover. It is responsible for controlling the flow of liquid. When the electric actuator applies force or torque, the valve disc or valve plate in the valve body will open or close accordingly, thereby adjusting the liquid flow in the pipeline.

[0076] In this way, the inspector can pre-set the water entry time of the water sample to be tested through the main controller and the timer. When the water entry time reaches the set time, the main controller can also control the alarm connected to it to sound an alarm, reminding the inspector that it is now time to smell, which effectively simplifies the inspector's operation.

[0077] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of the utility model, this does not limit the scope of patent protection of the utility model. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concept of the utility model using the contents recorded in the specification and drawings of the utility model, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of the utility model.

Claims

1. A smell detection device for drinking water, characterized in that: The device comprises a box, a water inlet pipe and a water outlet pipe, the box has a closed space, a spray assembly and an overflow box are arranged in the box, the spray assembly comprises a mechanical arm and a spray head, the mechanical arm is connected to the spray head in a transmission manner, and the spray head is arranged to spray downward; One end of the water inlet pipeline is connected to the water source, and the other end is connected to the mechanical arm. The mechanical arm is a hollow structure. The water inlet pipeline is also provided with a heating component. The drinking water flow from the water source passes through the heating component and the mechanical arm in sequence and then is sprayed out from the nozzle. The overflow box is arranged below the nozzle, the water outlet pipeline is connected to the bottom of the overflow box, a first control valve is also arranged on the water outlet pipeline, and the overflow box is also provided with an overflow pipe at a preset liquid level height, one end of the overflow pipe is connected to the overflow box, and the other end extends downward and is connected to the water outlet pipeline.

2. The odor detection device for drinking water according to claim 1, characterized in that: A protective cover is also provided in the box body, and the protective cover is provided at the upper opening of the overflow box to limit the liquid area sprayed by the nozzle.

3. The odor detection device for drinking water according to claim 1, characterized in that: The box body comprises a main body and a box door, wherein the box door is hinged to one side of the main body, and when the box door is closed, the box door is placed in a receiving groove of the main body.

4. The odor detection device for drinking water according to claim 3, characterized in that: The box door is made of transparent material.

5. The odor detection device for drinking water according to any one of claims 1 to 3, characterized in that: The heating component includes a heating sensor and a heating controller, the heating sensor and the heating controller are electrically connected, and the heating controller is used to control the opening and closing of the heating sensor or adjust the heating temperature of the heating sensor, and the heating temperature ranges from 20-50°C.

6. The odor detection device for drinking water according to claim 1, characterized in that: The device also includes a timer and a main controller. A third control valve is arranged on the water inlet pipeline. The main controller is electrically connected to the first control valve and the third control valve respectively.

7. The odor detection device for drinking water according to claim 1, characterized in that: The spray head can rotate relative to the mechanical arm to adjust the spraying direction of the spray head.

8. The odor detection device for drinking water according to claim 1 or 7, characterized in that: There are multiple nozzles, and the multiple nozzle arrays are configured on the robotic arm. A second control valve is also provided between each nozzle and the robotic arm.

9. The odor detection device for drinking water according to claim 1, characterized in that: The robotic arm includes a first connecting arm, a second connecting arm and a third connecting arm. The first connecting arm and the second connecting arm are arranged transversely and can be extended and retracted in the transverse direction respectively. The third connecting arm is arranged longitudinally between the first connecting arm and the second connecting arm and can be extended and retracted in the longitudinal direction.

10. The odor detection device for drinking water according to claim 1, characterized in that: It also includes a main controller. The heating component is provided with a heating controller. The water inlet pipeline is also provided with a third control valve. The main controller is electrically connected to the first control valve, the third control valve and the heating controller respectively.

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