CN211085874U - Leaching pipe - Google Patents

Abstract

The utility model relates to a rinsing pipe. The rinsing pipe comprises: a rinsing pipe body, which is a columnar pipe, the two ends of the rinsing pipe body are provided with nozzles; The two ends of the elution pipe body are detachably sealed and connected, one end of the connecting head connected to the elution pipe body is a large end, the other end is a small end, and the diameter of the small end is smaller than the diameter of the Big end pipe diameter. The equipment of the utility model is small in size and occupies a small area, can be carried out on a small test bench, is convenient to operate, can greatly reduce the consumption of raw materials, and saves labor and labor.

Description

a rinse pipe

technical field

The utility model relates to the technical field of fertilizer nutrient evaluation, in particular to a rinsing pipe used for evaluating fertilizer nutrients.

Background technique

Fertilizer is an important agricultural production material and has made outstanding contributions to improving crop yield and ensuring national food security. Fertilizer nutrient release and leaching is an important part of fertilizer product evaluation. Through the evaluation of fertilizer nutrient release and leaching, the release and leaching status of fertilizer nutrients can be determined, and then provide theoretical support for fertilizer product innovation and scientific fertilization.

However, in the current soil column test or sand column test, for the purpose of simulating actual soil conditions or climatic conditions, most of the elution pipes with upper and lower openings are used. For liquids containing fertilizer nutrients, the evaluation of fertilizer nutrients must be combined with local soil or climatic conditions to simulate or match factors such as rainfall, fertilizer dosage, soil bulk density, soil plough layer, etc. Therefore, the traditional device has a long elution pipe and consumes the amount of raw materials. There are also many problems and the test period is also long, so there are problems such as excessive equipment volume, large floor space, long time consumption, excessive consumption of raw materials, and inconvenient operation, which brings certain problems to the evaluation of fertilizer nutrient release and leaching. inconvenient.

In order to quickly evaluate the nutrient release and leaching conditions of fertilizers, and lay a foundation for further simulating nutrient release and leaching conditions under actual soil or climatic conditions, reduce workload and improve efficiency, preliminary fertilizer nutrient analysis can be carried out in the laboratory. For the evaluation of release and leaching, it is necessary to propose a convenient technique for evaluating the release and leaching of fertilizer nutrients.

Utility model content

In view of this, the present utility model aims to provide a rinsing pipe, which can quickly evaluate the nutrient release and leaching conditions of fertilizers, and can lay a foundation for further simulating the nutrient release and leaching conditions under actual soil or climatic conditions. , reduce the total evaluation workload and improve the evaluation efficiency.

The utility model is a rinsing pipe, characterized in that the rinsing pipe comprises:

The rinsing pipe body is a columnar pipe, and the two ends of the rinsing pipe body are provided with nozzles;

A connecting head, the connecting head is two pieces, which are respectively connected with the two ends of the elution pipe body in a detachable and sealing manner. One end of the connecting head connected to the elution pipe body is the big end, and the other end is Small end, the pipe diameter of the small end is smaller than the pipe diameter of the large end.

In the above-mentioned rinsing pipe, the connecting head is connected with the nozzle of the rinsing pipe body by screw thread connection or elastic clamping connection.

In the above-mentioned rinsing pipe, if the connector is not fixedly connected with the rinsing pipe body, the rinsing pipe further comprises a screw cover, one end of the screw cover is provided with an inner bolt, and the other end of the screw cover is provided with an opening;

The large end face of the connecting head is arranged opposite to the nozzle end face of the rinsing pipe body and is sealedly connected, and the small end of the connecting head extends from the inside of the screw cover to the outside of the opening;

The nozzle of the rinsing pipe body is provided with an external thread, the internal thread of the screw cover is fitted and installed with the external thread, and the inner wall of the screw cover clamps the outer wall of the large end of the connecting head.

In order to ensure the airtightness of the device, the rinsing pipe further includes a first gasket, and the first gasket is provided between the large end face of the connecting head and the end face of the nozzle of the rinsing pipe body.

Further, the rinsing pipe further includes a second gasket, and the second gasket is provided at the connection between the inner wall of the screw cover and the outer wall of the large end of the connecting head.

In the above-mentioned rinsing pipe, the shape of the connecting head can be funnel-shaped.

Further, the outline of the outer peripheral surface of the connector from the small end to the large end is a straight line or a curve. When it is a curve, from the small end to the large end, the outline of the outer peripheral surface is in a direction. A line type that is recessed into itself.

In the above-mentioned rinsing pipe, in order to connect more tightly, the outer surface of the small end of the connecting head is frosted.

In the above-mentioned rinsing pipe, in order to facilitate observation, the main body of the rinsing pipe is a transparent pipe body, and the outer surface of the pipe body is provided with a scale.

Preferably, the material of the rinsing pipe body is plexiglass, ordinary glass or polyethylene.

The equipment of the utility model is small in size and occupies a small area, can be carried out on a small test bench, is convenient to operate, can greatly reduce the consumption of raw materials, and saves labor and labor.

Description of drawings

1 is a schematic diagram of the overall structure of an embodiment of the present utility model;

2 is a schematic structural diagram of a rinsing pipe according to an embodiment of the present invention;

3 is a schematic structural diagram of a holding device according to an embodiment of the present invention;

4 is a schematic structural diagram of a rinsing pipe body according to an embodiment of the present invention;

5 is a schematic structural diagram of a connector according to an embodiment of the present invention;

6 is a schematic structural diagram of a sealing gasket according to an embodiment of the present invention;

7 is a schematic structural diagram of a screw cover according to an embodiment of the present invention;

Description of reference numbers:

1. Liquid container; 2. Peristaltic pump; 3. Multi-channel pump head; 41. First flexible thin tube; 42. Second flexible thin tube; 5. Elution tube; 6. Test tube clamp; 7. Double top wire ; 8, iron stand; 9, bracket; 10 centrifuge tube; 11, screw cover; 12a, silicone pad; 12b, silicone pad; 13, connector;

Detailed ways

The preferred embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings, so as to more clearly understand the purpose, features and advantages of the present utility model. It should be understood that the embodiments shown in the accompanying drawings are not intended to limit the scope of the present invention, but are only intended to illustrate the essential spirit of the technical solutions of the present invention.

For a group of fertilizers to simulate nutrient release and leaching conditions under actual soil or climatic conditions, the soil column test and sand column test used are mostly used for the purpose of simulating actual soil conditions or climatic conditions. The fertilizer eluent is rinsed into the pipe from the upper opening, and the liquid containing fertilizer nutrients is collected at the lower opening. When evaluating the fertilizer nutrients, factors such as the amount of irrigation water, the amount of fertilizer, and the amount of soil must be matched. Therefore, the elution pipe of the traditional device is large. The length of the rinsing pipe is about 0.6-1.2 meters, and the diameter of the pipe is about 10-20 cm. The amount of raw materials consumed when filling the rinsing pipe is also large, and the test period is also long, so it is time-consuming, labor-intensive and costly. The utility model seeks for a simple and preliminary evaluation simulation test that can be carried out in a laboratory, so as to preliminarily perform nutrient release and leaching evaluation on a group of fertilizers, screen out some fertilizers that meet certain conditions, and screen out some fertilizers if necessary. Some fertilizers are simulated and evaluated for nutrient release and leaching under actual soil or climatic conditions, thereby saving resources.

The utility model adopts a small rinsing pipe, which is easy to disassemble, and the two ends of the rinsing pipe are connected with flexible thin pipes for liquid transportation, which can quickly and conveniently conduct preliminary evaluation on the release and rinsing of fertilizer nutrients, greatly saves raw materials, and improves the work efficiency.

As shown in FIG. 1 , the utility model first proposes a device for evaluating fertilizer nutrient release and leaching. The device mainly includes a liquid inlet part, a rinsing pipe 5 and a liquid collecting part.

Wherein, the liquid inlet part includes a first flexible thin tube 41, one end of the first flexible thin tube 41 is the liquid inlet end, and the other end is connected to the small end of one of the connecting heads 13 of the rinsing pipe 5;

The rinsing pipe 5 mainly includes:

The rinsing pipe body 14 is a columnar pipe, and the two ends of the rinsing pipe body 14 are provided with nozzles;

The connecting head 13 includes two connecting heads. The two connecting heads 13 are respectively detachably and sealingly connected to the two ends of the elution pipe body 14 , and the connecting head 13 is connected to the elution pipe body 14 . One end is the big end, the other end is the small end, and the pipe diameter of the small end is smaller than the pipe diameter of the big end.

When the connection head is directly and fixedly connected with the elution pipe body, the connection head is connected with the nozzle of the elution pipe body by screw connection or elastic clamping or the like.

The liquid collecting part includes a second flexible thin tube 42 or an automatic liquid collecting instrument. One end of the second flexible thin tube 42 is connected to the small end of the other piece of the connecting head 13 of the rinsing tube 5 . The other end of the pipe 42 is the liquid outlet; or the liquid automatic collector is connected to the rinsing pipe.

The fertilizer eluting liquid flows through the rinsing pipe 5 in which the fertilizers and fillers are placed through the first thin thin tube 41, and then the liquid mixed with fertilizer nutrients is collected through the second thin thin tube 42, so that the The fertilizer nutrient index in the collected liquid is determined, so that a preliminary evaluation of a group of fertilizers to be evaluated can be performed.

In order to improve the efficiency of leaching evaluation, in the above-mentioned device for evaluating fertilizer nutrient release and leaching, the liquid inlet part may further include a peristaltic pump 2, and the pipe body part of the first flexible thin tube 41 is arranged on the peristaltic pump. 2 on. The peristaltic pump 2 can be used to control the passing speed of the fertilizer eluent in the first flexible thin tube 41 .

Preferably, the peristaltic pump can operate continuously, with high precision and adjustable speed.

In order to evaluate multiple groups of fertilizer nutrient release and leaching at one time, the pump head of the peristaltic pump 5 is a multi-channel pump head 3, that is, one peristaltic pump 5 can be equipped with multiple groups of nutrient release and leaching evaluation devices.

When a peristaltic pump is provided, the horizontal position of the elution pipe is not limited, and can be higher or lower than the horizontal position of the peristaltic pump, or the horizontal position of the elution pipe and the horizontal position of the peristaltic pump same. However, if the peristaltic pump is not set up, and the liquid forms a flow pressure by gravity alone, the horizontal position of the elution pipe must be lower than the liquid inlet pipe, that is, lower than the horizontal position of the first flexible thin pipe, forming a liquid self-rinsing pipe. The setting method of the flow from the upper end to the lower end.

Specifically, as shown in FIG. 1 , according to an embodiment of the present invention, the first flexible thin tube 41 is installed on the multi-channel pump head 3 , one end of the first flexible thin tube 41 is connected to the solution, and the other end is connected to the solution. The interface at the lower end of the eluent pipe 5 (example of bottom-up flow).

According to an embodiment of the present invention, as shown in FIG. 2 , the eluent tube 5 includes a silicone pad 12a, a silicone pad 12b, a connector 13, a screw cover 11 and a scaled elution tube body 14 (material can be It is composed of ordinary glass, plexiglass, polyethylene, etc.).

As shown in FIG. 1 , the rinsing pipe 5 is placed on the iron frame 8 and fixed at a certain height.

Preferably, a scale is marked on the pipe body of the rinsing pipe body 14 . The material of the rinsing pipe body 14 may be plexiglass, ordinary glass, polyethylene, and the like. For easy observation, the rinsing pipe body is a transparent pipe body.

Preferably, the upper and lower ports of the rinsing pipe body 14 are screw connection ports. The connection head 13 can also be provided with a threaded connection port so as to be connected with the rinsing pipe body 14 . The threaded connection port is provided to facilitate the filling of the pipe, and at the same time, it can help the tightness of the connection.

According to an embodiment of the present invention, as shown in FIG. 2 , if the connecting head 13 is not fixedly connected to the body of the rinsing pipe, the rinsing pipe may further include a screw cover 11 , and the screw cover 11 is made of two pieces. One end of the screw cover 11 is provided with an internal thread, and the other end of the screw cover 11 is provided with an opening. When connecting, the large end face of the connecting head 13 and the nozzle end face of the elution pipe body 14 are arranged opposite to each other and sealingly connected, and the small end of the connecting head 13 extends from the inside of the screw cover 11 to the outside the mouth. The nozzle of the rinsing pipe body 14 is provided with an external thread, the internal thread of the screw cover 11 is fitted with the external thread, and the inner wall of the screw cover 11 clamps the outer wall of the large end of the connecting head 13 . In this way, the rinsing pipe body 14 and the connecting head 13 can be fixedly connected through the screw cover 11 .

The shape of the connecting head 13 can be funnel-shaped, and the contour line of the outer peripheral surface of the connecting head 13 from the small end to the large end is a straight line or a curve, when it is a curve, from the small end to the large end. At the end, the outline of the outer peripheral surface is in the shape of a concave line toward itself.

Preferably, the shape of the two connecting heads 13 on the top and bottom of the rinsing pipe body is a concave funnel shape, that is, the outline of the outer peripheral surface of the connecting head is a line that is concave toward itself. It is designed in this way to minimize the pipe diameter at the big end of the connector 13 to prevent objects in the pipe such as quartz wool or fertilizer from falling off and blocking the water inlet.

The small end of the connector 13 can be designed as a pointed end for insertion into a flexible thin tube. The outer surface of the small end of the connecting head 13 may be a frosted structure to increase friction and facilitate connection with the flexible thin tube.

The material of the connector 13 may be plexiglass, ordinary glass, polyethylene, and the like.

Preferably, a silicone gasket (as a gasket, it can also be a gasket of other materials) is added between the connecting head 13 and the washing pipe body 14, and the large end face of the connecting head 13 and the washing pipe body 14 The pad is provided between the end faces of the nozzles of the rinsing pipe; one is to protect the contact surface between the washing pipe body 14 and the connecting head 13 , and the other is to increase the airtightness of the washing pipe body 14 and the connecting head 13 .

Preferably, a layer of silicone gasket (as a gasket, can also be a gasket of other materials) is added between the screw cover 11 and the connector 13, at the connection between the inner wall of the screw cover and the outer wall of the large end of the connector The pad is provided, which not only plays a sealing role, but also plays a protective role, and protects the contact surface between the screw cover and the connector to avoid wear.

In the utility model, the length of the rinsing pipe body can be designed to be 10-20 centimeters, and the pipe diameter can be designed to be 4-5 centimeters, which can be designed and adjusted according to the actual situation.

In the present utility model, the diameter of the thin thin tube can be designed to be 0.1-0.3 cm, the material of the thin thin tube can be selected from a certain flexible and bendable plastic suitable for liquid transportation, and the first thin thin tube is also suitable for With peristaltic pump, for example, the soft thin tube can be silicone tube or composite rubber tube.

Further, in order to fix the rinsing pipe, the device further includes a holding device.

According to an embodiment of the present invention, as shown in FIG. 3 , the holding device may include a stand 8 (for example, an iron stand), a double top wire 7 , a test tube clamp 6 and a bracket 9 (for example, an iron stand) . Of course, the holding device is not limited to this, and can be designed or adjusted according to the actual situation.

Further, the liquid collecting part also includes a centrifuge tube, which is connected with the liquid outlet end of the second flexible thin tube to collect the liquid containing fertilizer nutrients; or the liquid collecting part includes an automatic liquid collector , the liquid automatic collector automatically collects the liquid containing fertilizer nutrients from the elution pipe. When an automatic liquid collector is used, the second flexible thin tube may not be used, and the automatic liquid collector is directly connected to the connecting head of the eluent tube.

According to an embodiment of the present invention, as shown in FIG. 2 , the collection device includes a second thin thin tube 42 and a centrifuge tube 10 , and one end of the second thin thin tube 42 is connected to the upper end interface of the rinsing tube body 14 , and the other end is placed in the centrifuge tube 10 to collect the eluent.

Further, the liquid inlet part may further include a liquid storage vessel 1 , and the liquid inlet end of the first flexible thin tube 41 is placed in the liquid storage vessel 1 . Of course, the liquid feeding method is not limited to this, and can be replaced by other conventional settings.

According to an embodiment of the present invention, the installation method of the device is as follows.

The rinsing tube shown in FIG. 2 includes a silicone pad 12a, a connector 13, a screw cap 11, a graduated rinsing tube body 14 (the material can be ordinary glass, polyethylene or plexiglass), a silicone pad 12b and the like. The connecting head 13 is designed in a concave funnel shape, and the outer surface of its tip end is frosted.

The installation method of the rinse pipe with fertilizer and filler is as follows:

First, one or more of quartz wool, filter paper, and nylon mesh are laid flat in one end of the mouth of the rinsing pipe body 14 with scale, and then the nozzle is connected to the connecting head 13, and between the connecting head and the rinsing pipe body A silica gel pad 12 is added, and then a layer of silica gel pad is placed on the tip end of the connector, and finally the screw cover 11 is installed on the body of the elution tube.

Load a certain weight of soil or quartz sand from the other end of the rinsing pipe body to a depth of about 3-5 cm, and then put the fertilizer wrapped in nylon mesh with a mesh number of 0.1-0.5 mm into the rinsing pipe body. Then put a certain quality of soil or quartz sand into the tube to a depth of about 10-12 cm (in this case, the length of the rinsing tube is 15 cm as an example). Then cover with one or more of quartz wool, filter paper and nylon mesh, and then install the connector 13 and the screw cover 11 on the rinsing pipe body. Add a silicone gasket between the connector, the body of the eluent, and the screw cover. Fix the assembled rinsing tube with the test tube clamp 6 on the iron stand 9, and then use the double top wire 7 to fix it at a certain height.

The holding device shown in FIG. 3 includes an iron stand 8 , a double top wire 7 , a test tube clamp 6 and a bracket 9 . The connection point is fixed by double top wire. The holding device is placed on the experimental table.

The installation of the liquid inlet part and the rinsing pipe 5 is as follows:

As shown in FIG. 1 , first install the first flexible thin tube 4 on the multi-channel pump head 3, one end of the first flexible thin tube 41 is placed in the liquid container 1, and the other end is connected to the interface at the lower end of the rinsing tube 5. It is to make the liquid flow from the lower end of the rinsing pipe body to the upper end. According to the self-determined test requirements, the flow rate corresponding to the peristaltic pump 2 can be adjusted. The peristaltic pump 2 is selected with high precision. Within the allowable error range, the multi-channel pump head is preferentially selected to improve work efficiency. According to the pre-experimental results, the peristaltic pump is further fine-tuned to reduce errors and improve the accuracy of evaluation.

The liquid collecting part includes the second flexible thin tube 42 and the centrifuge tube 10, and the installation steps are:

One end of the second thin thin tube 42 is connected to the port on the upper end of the rinsing tube 5, and the other end is placed in the centrifuge tube 10, and the centrifuge tube 10 is placed on the centrifuge tube rack.

After the complete set of equipment and raw materials are assembled, the peristaltic pump 2 is turned on, and the liquid flow rate can be adjusted according to the self-determined test requirements. The eluent can be collected at fixed time intervals, and then the indicators such as the content of fertilizer nutrients can be detected on the machine.

On the other hand, the utility model also provides a method for utilizing the above-mentioned device for evaluating fertilizer nutrient release and leaching, the method mainly includes:

The fertilizer eluent flows through the first flexible thin tube through the eluent tube in which the fertilizer and the filler are placed;

The liquid mixed with fertilizer nutrients is collected through the second flexible straw;

Fertilizer nutrient indicators in the liquid are determined.

In the above method, a peristaltic pump can be used to control the passing speed of the fertilizer eluent in the first flexible thin tube.

In the above method, the filler can include quartz sand or/and soil, and the elution pipe is placed vertically during the evaluation, and the horizontal position of the elution pipe is higher or lower than the horizontal position of the peristaltic pump, Or the horizontal position of the elution pipe is the same as the horizontal position of the peristaltic pump.

By adjusting the flow rate of the peristaltic pump, the work efficiency can be effectively improved.

The equipment of the utility model is small in size and occupies a small area, can be carried out on a small test bench, and is convenient to operate.

The utility model consumes less raw materials, the equipment only needs 10-60 g of quartz sand or soil, and only one thousandth of the raw material required by the conventional device, which greatly reduces the consumption of raw materials and saves labor and effort.

The upper and lower ends of the rinsing pipe are designed as threaded ports, which are convenient for filling above, and can also be tightly connected with screw caps.

The connector is designed in the shape of a concave funnel, and the outer surface of the tip end is frosted. On the one hand, it increases the friction force and facilitates the connection of the flexible thin tube;

A layer of silicone pad is added between the connector, the elution tube and the screw cover, which can effectively protect the device on the one hand, and increase the airtightness of the device on the other hand, improving the accuracy of the evaluation test.

The utility model can quickly evaluate the nutrient release and leaching conditions of fertilizers, and can lay a foundation for further simulating the nutrient release and leaching conditions under actual soil or climate conditions, reduce the total workload of fertilizer nutrient release and leaching evaluation, and can The preliminary evaluation of fertilizer nutrient release and leaching is carried out in the laboratory, which improves the work efficiency, and the device is small in size, occupies a small area and consumes less raw materials.

It should be noted that, in this document, 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 these There is no such actual relationship or sequence between entities or operations. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion such that a process, method, article or device comprising a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

The above-mentioned embodiments are only used to illustrate the present utility model, and each component and device of the embodiments can be changed to some extent, and the general principles defined in this paper can be used without departing from the spirit or scope of the present application. implemented in other embodiments. Therefore, the present application will not be limited to the embodiments described herein, and all equivalent transformations and improvements based on the technical solutions of the present invention should not be excluded from the protection scope of the present invention.

Claims (10)

1. A rinsing pipe, characterized in that, the rinsing pipe comprises: The rinsing pipe body is a columnar pipe, and the two ends of the rinsing pipe body are provided with nozzles; A connecting head, the connecting head is two pieces, which are respectively connected with the two ends of the elution pipe body in a detachable and sealing manner. One end of the connecting head connected to the elution pipe body is the big end, and the other end is Small end, the pipe diameter of the small end is smaller than the pipe diameter of the large end. 2 . The rinsing pipe according to claim 1 , wherein the connecting head is connected with the nozzle of the rinsing pipe body by screw thread connection or elastic clamping connection. 3 . 3. The rinsing pipe according to claim 1, characterized in that, The elution pipe further comprises a screw cover, one end of the screw cover is provided with an inner bolt, and the other end of the screw cover is provided with an opening; The large end face of the connecting head is arranged opposite to the nozzle end face of the rinsing pipe body and is sealedly connected, and the small end of the connecting head extends from the inside of the screw cover to the outside of the opening; The nozzle of the rinsing pipe body is provided with an external thread, the internal thread of the screw cover is fitted and installed with the external thread, and the inner wall of the screw cover clamps the outer wall of the large end of the connecting head. 4 . The rinsing pipe according to claim 3 , wherein the rinsing pipe further comprises a first sealing gasket, which is located between the large end face of the connecting head and the nozzle end face of the rinsing pipe body. 5 . The first sealing gasket is arranged therebetween. 5 . The rinsing pipe according to claim 3 , wherein the rinsing pipe further comprises a second gasket, and a second gasket is provided at the connection between the inner wall of the screw cover and the outer wall of the large end of the connecting head. 6 . the second gasket. 6. The rinsing pipe according to any one of claims 1 to 5, wherein the shape of the connecting head is funnel-shaped. 7 . The rinsing pipe according to claim 6 , wherein the outline of the outer peripheral surface of the connecting head from the small end to the large end is a straight line or a curve, and when it is a curve, from the small end To the big end, the outline of the outer peripheral surface is in a shape of a concave shape toward itself. 8. The rinsing pipe according to any one of claims 1 to 5 or 7, wherein the outer surface of the small end of the connector is frosted. 9 . The rinsing pipe according to claim 1 , wherein the rinsing pipe body is a transparent pipe body, and the outer surface of the pipe body is provided with scales. 10 . 10 . The rinsing pipe according to claim 9 , wherein the material of the rinsing pipe body is plexiglass, ordinary glass or polyethylene. 11 .

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