Heating cylinder

Abstract

The utility model provides a heating cylinder which comprises a shell, a water inlet pipe, a temperature sensor and a water outlet pipe. The shell comprises a water inlet and a water outlet, and a heating module is arranged in the shell; the heating module isolates the water inlet from the water outlet; the water inlet pipe is connected with the water inlet of the shell; the temperature sensor is connected with one end, close to the shell, of the water inlet pipe; the water outlet pipe is connected with the water outlet of the shell; when liquid to be heated is input into the shell through the water inlet pipe, the heating module heats the liquid in the shell, and the heated liquid is output out of the shell through the water outlet pipe. The temperature sensor is used for detecting the temperature of liquid output by the water outlet pipe. The liquid heating device is not interfered by the heating unit, and the temperature of the output heated liquid can be more accurately obtained.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid heating, in particular to a heating cylinder. Background Art

[0002] A heating cylinder refers to an electrical device that heats liquids through a heating module. In the prior art, in order to obtain the heating status of the liquid in the heating cylinder, a temperature sensor is arranged in the housing where the heating module is located, so that the temperature sensor can detect the temperature of the heated liquid. However, since the temperature sensor and the heating module are arranged in the housing together, the temperature sensor is easily affected by the heating module, thereby reducing the accuracy of temperature detection. Moreover, there are many liquids with different heating times in the housing, so the temperature sensor may not detect the temperature of the heated liquid, which may lead to errors in the temperature detection result. Utility Model Content

[0003] The purpose of the utility model is to provide a heating cartridge which can overcome the shortcomings and deficiencies in the prior art.

[0004] An embodiment of the utility model provides a heating cartridge, comprising: a shell, a water inlet pipe, a temperature sensor and a water outlet pipe;

[0005] The shell comprises a water inlet and a water outlet, and a heating module is arranged inside the shell; the heating module isolates the water inlet and the water outlet;

[0006] The water inlet pipe is connected to the water inlet of the shell, and the temperature sensor is connected to one end of the water inlet pipe close to the shell; the water outlet pipe is connected to the water outlet of the shell;

[0007] When the water inlet pipe inputs the liquid to be heated into the shell, the heating module heats the liquid in the shell, and the water outlet pipe outputs the heated liquid to the outside of the shell; the temperature sensor is used to detect the temperature of the liquid output by the water outlet pipe.

[0008] Furthermore, the water inlet is located at the top of the side of the shell, and the water outlet is located at the bottom of the shell.

[0009] Furthermore, the heating module includes a plurality of heating tube groups arranged from top to bottom; each heating tube group includes at least one spiral heating tube; wherein the spiral heating tube is a heating tube with a spiral structure, and the spacing between adjacent heating tube groups is greater than the pitch of the spiral heating tube.

[0010] Furthermore, each heating tube group includes, from the inside to the outside, a first spiral heating tube, a second spiral heating tube and a third spiral heating tube with the same pitch; the spacing between the first spiral heating tube and the second spiral heating tube is greater than the pitch; the spacing between the second spiral heating tube and the third spiral heating tube is greater than the pitch.

[0011] Furthermore, the diameter of the water outlet faces the lowest heating tube group.

[0012] Furthermore, the water outlet has a diameter facing at least two spiral heating tubes of the bottom heating tube group.

[0013] Furthermore, it also includes a plurality of support frames, each of which passes through the top of the shell and is connected to the corresponding heating tube group.

[0014] Furthermore, each of the spiral heating tubes includes 6 or 7 thread layers.

[0015] Furthermore, the temperature sensor is connected to the water inlet pipe through a sampling tube, and the sampling tube is inclined in a direction where the tube approaches the shell.

[0016] Compared with the prior art, the temperature sensor of the utility model is connected to one end of the water inlet pipe close to the shell. Therefore, the temperature detected by the temperature sensor of the utility model is the liquid heated by the heating module. Since the temperature sensor is not directly arranged in the shell, the temperature sensor will not be disturbed by the heating unit, nor will it be disturbed by the temperature of the liquid in the shell with a shorter heating time. The temperature of the output heated liquid can be obtained more accurately.

[0017] In order to more clearly understand the present invention, the specific implementation of the present invention will be described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of a heating cartridge according to an embodiment of the utility model.

[0019] Figure 2 This is a schematic diagram of a support frame according to an embodiment of the utility model.

[0020] 1. Heating tube; 10. Shell; 15. Heating module; 30. Water inlet pipe; 50. Temperature sensor; 70. Water outlet pipe; 90. Support frame. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-2 , a heating cartridge of one embodiment of the utility model comprises: a shell, a water inlet pipe, a temperature sensor and a water outlet pipe;

[0023] The shell comprises a water inlet and a water outlet, and a heating module is arranged inside the shell; the heating module isolates the water inlet and the water outlet;

[0024] The water inlet pipe is connected to the water inlet of the shell, and the temperature sensor is connected to one end of the water inlet pipe close to the shell; the water outlet pipe is connected to the water outlet of the shell;

[0025] When the water inlet pipe inputs the liquid to be heated into the shell, the heating module heats the liquid in the shell, and the water outlet pipe outputs the heated liquid to the outside of the shell; the temperature sensor is used to detect the temperature of the liquid output by the water outlet pipe.

[0026] Among them, since the temperature sensor detects a mixture of the liquid to be heated input by the water inlet pipe and the heated liquid in the shell, and the temperature of the mixed liquid output by the heating tube is also a mixture of the heated liquid and the unheated liquid, the liquid temperature detected by the temperature sensor will be closer to the temperature of the mixed liquid output by the heating tube, which can improve the accuracy of temperature detection.

[0027] In a feasible embodiment, the water inlet is located at the top of the side of the shell, and the water outlet is located at the bottom of the shell.

[0028] The water inlet is located at the top of the top side of the shell, which is conducive to the liquid flowing downward along the inside of the shell when it enters the shell, thereby increasing the flow distance of the liquid and heating the liquid more fully.

[0029] In a feasible embodiment, the heating module includes a plurality of heating tube groups arranged from top to bottom; each heating tube group includes at least one spiral heating tube; wherein the spiral heating tube is a heating tube with a spiral structure, and the spacing between adjacent heating tube groups is greater than the pitch of the spiral heating tube.

[0030] Among them, the spacing between the heating tube groups is greater than the pitch of the heating tube, which can increase the capacity of the liquid between the heating tube groups, is conducive to fully heating the liquid, and can reduce the mutual influence between the heating tube groups.

[0031] In a feasible embodiment, each heating tube group includes, from the inside to the outside, a first spiral heating tube, a second spiral heating tube and a third spiral heating tube with the same pitch; the spacing between the first spiral heating tube and the second spiral heating tube is greater than the pitch; the spacing between the second spiral heating tube and the third spiral heating tube is greater than the pitch.

[0032] Among them, the spacing between the spiral heating tubes is greater than the pitch, which can increase the capacity of the liquid between the spiral heating tubes, is conducive to fully heating the liquid, and can reduce the mutual influence between the spiral heating tubes.

[0033] In a feasible embodiment, the water inlet faces the third spiral heating tube at the top, or between the third spiral heating tube and the second spiral heating tube. This is beneficial for the liquid to directly contact the third spiral heating tube, or the third spiral heating tube and the second spiral heating tube when entering the shell from the water inlet, so as to exchange heat, thereby increasing the flow distance of the liquid and the contact time with the spiral heating tube, so that the liquid is heated more fully.

[0034] In a feasible embodiment, an internal thread opposite to the spiral direction of the spiral heating tube can be provided in the shell, which can conveniently limit the flow direction of the liquid through the internal thread to reduce the situation where the liquid flows vertically downward directly under the action of gravity, increase the flow time of the liquid, and facilitate sufficient heating of the liquid.

[0035] In a feasible embodiment, the water outlet has an opening facing the lowest heating tube assembly.

[0036] The diameter of the water outlet is directed toward the lowest heating tube group, which is beneficial for preferentially outputting the liquid heated by the heating tube group to maintain the temperature of the output liquid.

[0037] In a feasible embodiment, the water outlet has an opening facing at least two spiral heating tubes of the bottom heating tube assembly.

[0038] For example, each heating tube group may include three spiral heating tubes. The water outlet is oriented toward at least two spiral heating tubes of the bottom heating tube group, which is beneficial for preferentially outputting the liquid heated by the multiple spiral heating tubes, and can prevent the output liquid from being heated at an insufficient temperature.

[0039] In a feasible embodiment, a plurality of support frames are further included, and each of the support frames passes through the top of the shell and is connected to the corresponding heating tube group.

[0040] For example, one heating tube assembly may be connected to two support frames, or one spiral heating tube may be connected to one support frame.

[0041] In a feasible embodiment, each of the spiral heating tubes includes 6 or 7 thread layers.

[0042] The more thread layers there are, the larger the area for heat exchange between the spiral heating tube and the liquid.

[0043] In a feasible embodiment, the temperature sensor is connected to the water inlet pipe through a sampling tube, and the sampling tube is inclined in a direction where the tube approaches the shell.

[0044] The sampling tube is inclined in a direction close to the shell, that is, the angle between the sampling tube and the liquid in the water outlet pipe is smaller than a right angle, which can reduce the influence of the sampling tube on the output of body fluids.

[0045] Compared with the prior art, the temperature sensor of the utility model is connected to one end of the water inlet pipe close to the shell. Therefore, the temperature detected by the temperature sensor of the utility model is the liquid heated by the heating module. Since the temperature sensor is not directly arranged in the shell, the temperature sensor will not be disturbed by the heating unit, nor will it be disturbed by the temperature of the liquid in the shell with a shorter heating time. The temperature of the output heated liquid can be obtained more accurately.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heating cartridge, characterized in that: include: Shell, water inlet pipe, temperature sensor and water outlet pipe; The shell comprises a water inlet and a water outlet, and a heating module is arranged inside the shell; The heating module isolates the water inlet and the water outlet; The water inlet pipe is connected to the water inlet of the shell, and the temperature sensor is connected to one end of the water inlet pipe close to the shell; the water outlet pipe is connected to the water outlet of the shell; When the water inlet pipe inputs the liquid to be heated into the shell, the heating module heats the liquid in the shell, and the water outlet pipe outputs the heated liquid to the outside of the shell; the temperature sensor is used to detect the temperature of the liquid output by the water outlet pipe.

2. The heating cartridge according to claim 1, characterized in that: The water inlet is located at the top of the side of the shell, and the water outlet is located at the bottom of the shell.

3. The heating cartridge according to claim 2, characterized in that: The heating module includes a plurality of heating tube groups arranged from top to bottom; each heating tube group includes at least one spiral heating tube; wherein the spiral heating tube is a heating tube with a spiral structure, and the spacing between adjacent heating tube groups is greater than the pitch of the spiral heating tube.

4. The heating cartridge according to claim 3, characterized in that: Each heating tube group includes, from the inside to the outside, a first spiral heating tube, a second spiral heating tube and a third spiral heating tube with the same pitch; the spacing between the first spiral heating tube and the second spiral heating tube is greater than the pitch; the spacing between the second spiral heating tube and the third spiral heating tube is greater than the pitch.

5. The heating cartridge according to claim 4, characterized in that: The diameter of the water outlet faces the lowest heating tube group.

6. The heating cartridge according to claim 5, characterized in that: The water outlet has an opening facing at least two spiral heating tubes of the bottom heating tube group.

7. The heating cartridge according to claim 6, characterized in that: It also includes a plurality of support frames, each of which passes through the top of the shell and is connected to the corresponding heating tube group.

8. The heating cartridge according to claim 3, characterized in that: Each of the spiral heating tubes comprises 6 or 7 thread layers.

9. The heating cartridge according to any one of claims 1 to 8, characterized in that: The temperature sensor is connected to the water inlet pipe through a sampling tube, and the sampling tube is inclined in a direction close to the shell.

Images